Thanks for the link to the upstream bug report. Although the enhancement request from that bug (Gnome #309721) would help with the symptoms of what I am reporting, my issue stems from a different problem.
The problem isn't that I am accidentally dragging the panel, but that somehow the panel thinks I am trying to drag, even though my mouse never started to do a drag. As I described above, simply double-clicking on an icon on the panel and then moving the mouse causes the panel to move to whichever side the mouse traveled. Not a single click, but the unexpected (albeit unnecessary) double-click.
Thanks for the link to the upstream bug report. Although the enhancement request from that bug (Gnome #309721) would help with the symptoms of what I am reporting, my issue stems from a different problem.
The problem isn't that I am accidentally dragging the panel, but that somehow the panel thinks I am trying to drag, even though my mouse never started to do a drag. As I described above, simply double-clicking on an icon on the panel and then moving the mouse causes the panel to move to whichever side the mouse traveled. Not a single click, but the unexpected (albeit unnecessary) double-click.