@YuAo I saw your pull request, but I misread it and thought it was a bug report. Good catch!

So I fixed this in [this commit](https://github.com/adobe/brackets/commit/278f996a832aaecde330bd834d7baf75197e5875) while I was fixing #6231 . Note that I moved this code a bit in pull request https://github.com/adobe/brackets/pull/6258, so your change will have to be merged. I backed out my change for this fix after I noticed that this was actually a pull request :)

But, this fix is not quite right because it prevents Ctrl+space from invoking css property hints when nothing has been typed.

Let me know if you'd like to continue with this, or if I should just fix it.