fix: distance 2mi in edit page is displayed as 3.22km

[daledah]

Explanation of Change

Fixed Issues

$ #83145
PROPOSAL: #83145 (comment)

Tests

1. Create workpace
2. Go to workspace chat
3. Create a distance manual expense (2mi)
4. Go to workspace settings
5. Enable distance rate - settings - change unit to kilometer
6. Go to expense and tap distance
7. Verify that: Distance 2mi in edit page must be displayed as in the expense preview.

• Verify that no errors appear in the JS console

Offline tests

Same as tests

QA Steps

Same as tests

• Verify that no errors appear in the JS console

PR Author Checklist

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Screenshots/Videos

Android: Native

android-mweb.mov

Android: mWeb Chrome

android-mweb.mov

iOS: Native

ios.mov

iOS: mWeb Safari

ios-mweb.mov

MacOS: Chrome / Safari

web.mov

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[huult]

Reviewer Checklist

• I have verified the author checklist is complete (all boxes are checked off).
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  • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
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  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick).
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text shown in the product is localized by adding it to src/languages/* files and using the translation method
  • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
  • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
  • I verified the JSDocs style guidelines (in STYLE.md) were followed
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• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
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  • I verified that all the inputs inside a form are aligned with each other.
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Screenshots/Videos

Android: HybridApp

Screen.Recording.2026-05-11.at.11.56.54.mp4

Android: mWeb Chrome

Screen.Recording.2026-05-11.at.12.00.10.mp4

iOS: HybridApp

Screen.Recording.2026-05-11.at.12.02.32.mp4

iOS: mWeb Safari

Screen.Recording.2026-05-11.at.12.03.07.mp4

MacOS: Chrome / Safari

Screen.Recording.2026-05-11.at.11.49.39.mp4

[huult]

Hi @daledah I’m seeing a crash after updating the distance, and it’s still reproducible on staging. Could you help investigate the RCA? If it’s a quick fix, we can either post in Slack or include it in this PR.

[huult]

Hi @JmillsExpensify could you take a look at these 2 videos and let me know if you agree with the new behavior?

1. Current behavior:

After changing the unit from miles to kilometers, when we open the preview page and update the distance, the value is converted from miles to kilometers and then saved in kilometers.

Screen.Recording.2026-05-03.at.15.24.48.mov

2. New behavior (after our change):
   On the preview page, we no longer convert the existing value. We keep the original value in miles. When saving, we persist that value but apply the new unit (kilometers).

Screen.Recording.2026-05-03.at.15.26.07.mov

[daledah]

Hi @daledah I’m seeing a crash after updating the distance, and it’s still reproducible on staging. Could you help investigate the RCA? If it’s a quick fix, we can either post in Slack or include it in this PR.

@huult i can't reproduce this bug. Could you please add more detailed steps here?

[huult]

Screen.Recording.2026-05-03.at.15.26.07.mov

@daledah could you check this video?

[daledah]

bug-resize.mp4

I can't reproduce this bug by following the steps here

[huult]

Hi @JmillsExpensify could you take a look at these 2 videos and let me know if you agree with the new behavior?

1. Current behavior:

After changing the unit from miles to kilometers, when we open the preview page and update the distance, the value is converted from miles to kilometers and then saved in kilometers.

Screen.Recording.2026-05-03.at.15.24.48.mov
2. New behavior (after our change):
On the preview page, we no longer convert the existing value. We keep the original value in miles. When saving, we persist that value but apply the new unit (kilometers).

Screen.Recording.2026-05-03.at.15.26.07.mov

@JmillsExpensify what do you think?

[JmillsExpensify]

I agree with your recommendation.

On the preview page, we no longer convert the existing value. We keep the original value in miles. When saving, we persist that value but apply the new unit (kilometers).

This is the right way to go for now. We don't retroactively update mileage expenses, so applying it on save makes sense to me.

[huult]

@JmillsExpensify , Thanks for the confirmation.

[huult]

@daledah Please resolve the conflict

[daledah]

@huult i resolved

[huult]

LGTM.

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No help site changes are required for this PR.

This is a one-line bug fix in IOURequestStepDistanceManual.tsx that corrects which distance unit is displayed when editing a distance expense. No user-facing features, workflows, terminology, or UI labels were added or changed.

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