uv_select_all_perform had split the UV_SYNC_SELECTION case into a separate block which complicated changes in this area. Now each UV select function handles the sync-select case. Also make UV's const when only used for comparison.
uv_select_all_perform had split the UV_SYNC_SELECTION case into a separate block which complicated changes in this area. Now each UV select function handles the sync-select case. Also make UV's const when only used for comparison.