patch 8.2.2340: win_execute() unexpectedly returns number zero when failing
Problem: win_execute() unexpectedly returns number zero when failing.
Solution: Return an empty string. (closes #7665)
diff --git a/src/evalwindow.c b/src/evalwindow.c
index 492269e..e00747a 100644
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -673,6 +673,10 @@
win_T *save_curwin;
tabpage_T *save_curtab;
+ // Return an empty string if something fails.
+ rettv->v_type = VAR_STRING;
+ rettv->vval.v_string = NULL;
+
if (wp != NULL && tp != NULL)
{
pos_T curpos = wp->w_cursor;