patch 8.2.3227: 'virtualedit' can only be set globally

Problem:    'virtualedit' can only be set globally.
Solution:   Make 'virtualedit' global-local. (Gary Johnson, closes #8638)
diff --git a/src/buffer.c b/src/buffer.c
index 25efea1..59397e4 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2384,6 +2384,7 @@
 #endif
     clear_string_option(&buf->b_p_bkc);
     clear_string_option(&buf->b_p_menc);
+    clear_string_option(&buf->b_p_ve);
 }
 
 /*