Some weeks ago I had reported issues with linebreaks in status box. You provided a bug fix, which solved some of the issues.
However, our users now reported further issues as follows:
When adding mentions such as @user, status box gets frozen. It does not react anymore. Users cannot even place the cursor in the status box.
Clicking on "cancel" button ends up with another issue. Users now can type in new text, but due to the fact that the default sentence "say what's on your mind" remains in its place, both the new text and pre-defined text now are mixed in one. See attachment 1.
Last but not least, when typing text in the status box quite a lot of empty space is added at the end of the text. So, the status box looks very ugly. Users can't get rid of this redundant space because it cannot be accessed from inside the status box.