fix(contacts): handle line manager property creation

[nfk]

Adding the Line manager field created an empty x-managersname property and then immediately tried to focus the newly rendered editor. When the property had no matching contact value, the select received an undefined value and no focusable field was available.

This produced the following JavaScript errors:

• No focusable element found for property x-managersname
• TypeError: can't access property "toLowerCase", this.localValue is undefined

Keep empty manager properties represented as an empty string, guard select matching before lowercasing the local value, and store the only available manager using the vCard display name plus UID parameter instead of the internal contact key.

Fixes #4454

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...onents/ContactDetails/ContactDetailsAddNewProp.vue	0.00%	2 Missing ⚠️
...mponents/ContactDetails/ContactDetailsProperty.vue	0.00%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!

[nfk]

@hamza221 @GVodyanov could you consider this MR? or let me know if some other changes are required. Thanks.

[hamza221]

@hamza221 @GVodyanov could you consider this MR? or let me know if some other changes are required. Thanks.

Hello, Really sorry for the delay, I will give it another review this week

[hamza221]

/backport to stable8.3

[hamza221]

/backport to stable8.5

[welcome]

Thanks for your first pull request and welcome to the community! Feel free to keep them coming! If you are looking for issues to tackle then have a look at this selection: https://github.com/nextcloud/contacts/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22

[backportbot]

The backport to stable8.3 failed. Please do this backport manually.

# Switch to the target branch and update it
git checkout stable8.3
git pull origin stable8.3

# Create the new backport branch
git checkout -b backport/5304/stable8.3

# Cherry pick the change from the commit sha1 of the change against the default branch
# This might cause conflicts, resolve them
git cherry-pick f7f6af4d

# Push the cherry pick commit to the remote repository and open a pull request
git push origin backport/5304/stable8.3

Error: Failed to check for changes with origin/stable8.3: No changes found in backport branch

---

Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

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