patch 8.2.0133: invalid memory access with search command

Problem:    Invalid memory access with search command.
Solution:   When :normal runs out of characters in bracketed paste mode break
            out of the loop.(closes #5511)
diff --git a/src/edit.c b/src/edit.c
index 8160fe5..f2ae425 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -4959,9 +4959,9 @@
 	do
 	    c = vgetc();
 	while (c == K_IGNORE || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR);
-	if (c == NUL || got_int)
+	if (c == NUL || got_int || (ex_normal_busy > 0 && c == Ctrl_C))
 	    // When CTRL-C was encountered the typeahead will be flushed and we
-	    // won't get the end sequence.
+	    // won't get the end sequence.  Except when using ":normal".
 	    break;
 
 	if (has_mbyte)