Comment 12 for bug 1315579

Yes, it was specifically in Trusty 14.04 that this issue was found, in May of 2014. Due to the Gedit and Dash issues with SCIM, I had to leave using SCIM and use Fcitx instead. For the last 2 years I've been using Fcitx.

As to your second question, I would need to make SCIM the active input method and test it. If doing so will affect the action taken here, let me know and I will try and test it.