M-; doesn't move to the end of the line when using it with no region

[UwUnyaa]

Using M-; with no region (on an empty line or one with some code) doesn't cause the point to jump to the end of it so I can start typing a comment right away, which is how comment-dwim normally behaves.

Here's a recording of the problem, along with the same test performed in js2-jsx-mode, which doesn't have this problem:
https://asciinema.org/a/202462

[felipeochoa]

Have you looked at #83? Is this independent of that?

[UwUnyaa]

It doesn't seem to be related to that issue and it seems to be 100% consistent. It's not related to executing commands before a reparse is complete, in both scenarios I've shown the entire buffer gets reparsed before I type M-;. After updating rjsx-mode to a version which fixes rjsx indentation and ads support for proper JSX comments (which don't seem to work with empty region at all) I've been facing this issue every time I wanted to make a comment in my code.