patch 8.0.1026: GTK on-the-spot input has problems commit https://github.com/vim/vim/commit/5c6dbcb03fa552d7b0e61c8fcf425147eb6bf7d5 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 30 22:00:20 2017 +0200 patch 8.0.1026: GTK on-the-spot input has problems Problem: GTK on-the-spot input has problems. (Gerd Wachsmuth) Solution: Support over-the-spot. (Yukihiro Nakadaira, Ketn Takata, closes #1215)

--- a/src/edit.c
+++ b/src/edit.c
@@ -9683,7 +9683,7 @@ ins_left(
 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
 	/* Only call start_arrow() when not busy with preediting, it will
 	 * break undo.  K_LEFT is inserted in im_correct_cursor(). */
-	if (!im_is_preediting())
+	if (p_imst == IM_OVER_THE_SPOT || !im_is_preediting())
 #endif
 	{
 	    start_arrow_with_change(&tpos, end_change);