[Autocomplete] Skip filtering when list of options is loading

[ndebeiss]

…een typed

• I have followed (at least) the PR section of the contributing guide.

[mui-bot]

Details of bundle changes

Generated by 🚫 dangerJS against 3ca6c90

[michaldudak]

What problem does this PR solve? It's best to create an issue first.
Also, there are no tests added that verify your change (and could help others understand what this change is about)

[ndebeiss]

Hello
I can create an issue with the same title if you want, but it is actually a performance enhancement.
I have a list with several thousand options, with checkboxes. So the first load, when the user has not typed anything in the filter, is very long.
With the current code, each option label is generated, lower-cased, accents are removed, and it is compared to the filter to see if the option is retained.
With an empty filter, this is not necessary.
I added a test for this, but Webstorm can't run the tests, I'll look into it.

[michaldudak]

OK, such a description in the PR is enough. I'm picky about it as in the future, when someone wants to find out when a particular line of code was changed, the PR description and comments will be the only thing to guide them. That's why it's important to have a good description of a change.

To make the CI happy, please run yarn prettier and push the changes.

[ndebeiss]

Yes, I completely understand the need to comment on the change. I made the pull request quickly, I wasn't sure I would be able to contribute.
I did the yarn prettier and repushed.

[michaldudak]

The test you've added passes even without your change, so it doesn't correctly verify the problem you're solving.

[michaldudak]

Please merge or rebase on the latest master.

[ndebeiss]

Hello
Do you need something more from me ?
regards

[mnajdova]

Great contribution, thank you! I've updated the logic just a bit, to be more readable. The test looks good now 👍