35910: Don't add to raw lex buffer if lex stopped.

This was causing a segmentation violation in completion when parsing
an incomplete math expression, e.g. 'echo $((3*4)<TAB>'.

1 files changed, 2 insertions, 1 deletions

diff --git a/Src/input.c b/Src/input.c
index 613f89a25..1efabadeb 100644
--- a/Src/input.c
+++ b/Src/input.c
@@ -222,7 +222,8 @@ ingetc(void)
 	if (inputline())
 	    break;
     }
-    zshlex_raw_add(lastc);
+    if (!lexstop)
+	zshlex_raw_add(lastc);
     return lastc;
 }