"Open Syncthing Web Interface" does not use an updated URL until app restart

[lgarron]

• Open Syncthing preferences
• Change the URL to something like http://syncthing.localhost:8384 (or https://syncthing.localhost:8384 if you use HTTPS).
• Click on one of the following:
  • "Open Syncthing Web Interface" in the preferences window
  • "Open" from the menu

This continues to open the old URL until the app is restarted. I suspect this code is accessing a cached value instead of a fresh one:

syncthing-macos/syncthing/STApplication.m

Line 211 in f063741

NSURL *URL = [NSURL URLWithString:[_syncthing URI]];