Comment 6 for bug 1026553

This is bug-ish behavior within Expo itself. It can be reproduced without ever clicking the workspace launcher. You can click anywhere on the screen immediately after Super+s and Expo will switch straight back to the workspace nearest to the click, sometimes dragging windows along with it unpredictably.

A slight improvement that might be achievable is if the Workspace Launcher can "block" Expo from receiving clicks. But the bug still lies with Expo willing to process clicks during unpredictable animation.