Description:
in GNOME 3.22 on Fedora 25, opening a document in gedit when there is already a gedit window open does not bring it to the front.

Steps to reproduce:
1. Open a document in gedit.
2. Open a nautilus window and cover the gedit window with it.
3. Navigate to another text file in that nautilus window and open it.

Expected results:
gedit jumps to the front, displaying the just-opened file in a new tab.

Actual results:
gedit opens the file in a new tab, but does not bring itself to the front. If the prior gedit window wasn't visible at all, there is no way to know whether the document opened successfully. This is not especially user-friendly. A novice might easily assume that the file couldn't be opened or something.

Additional information:
Seems related to or a recurrence of https://bugzilla.gnome.org/show_bug.cgi?id=324148, which was reported fixed 9 years ago.