patch 8.2.0833: mapping <C-bslash> doesn't work in the GUI
Problem: Mapping <C-bslash> doesn't work in the GUI.
Solution: Reset seenModifyOtherKeys when starting the GUI. (closes #6150)
diff --git a/src/gui.c b/src/gui.c
index 93b8bb6..a7216fc 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -803,6 +803,8 @@
if (!p_beval)
gui_mch_disable_beval_area(balloonEval);
#endif
+ // In case the terminal was used before ":gui".
+ seenModifyOtherKeys = FALSE;
#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
if (!im_xim_isvalid_imactivate())