It is. Not sure if is a CodeMirror issue, or just a timing. Try the following with and without this block:

1. Increase the font-size 10 times.
2. Reload brackets.
3. Restore the font-size

Without this hack on step 3 the scroll jumps several lines, but with it, it works. I checked that the problem was that `oldHeight` and `newHeight` had the same value. I am not quite sure what it is happening, but it only happens on the first font adjustment after a reload when the font is not the default size. It will further investigation to figure the problem here.