[gtk] (4 commits) Non-fast-forward update to branch wip/baedert/for-master

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/for-master' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  dbd3f45... label: Ignore AFFECTS_ATTRS css changes if we have not attr
  7ad0a21... label: Only parse mnemonic attributes if we need to
  9e37f10... label: Don't create an unnecessary attribute list

Commits added to the branch:

  4071c0f... label: Ignore AFFECTS_ATTRS css changes if we can
  c86f49c... label: Only parse mnemonic attributes if we need to
  25c9664... label: Don't create an unnecessary attribute list
  f171ed7... label: Redraw when text attrs are affected by css change