patch 8.2.0370: the typebuf_was_filled flag is sometimes not reset

Problem:    The typebuf_was_filled flag is sometimes not reset, which may
            cause a hang.
Solution:   Make sure typebuf_was_filled is reset when the typeahead buffer is
            empty.

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    370,
 /**/
     369,
 /**/