patch 8.2.2207: illegal memory access if popup menu items are changed

Problem:    Illegal memory access if popup menu items are changed while the
            menu is visible. (Tomáš Janoušek)
Solution:   Make a copy of the text. (closes #7537)
diff --git a/src/version.c b/src/version.c
index adba2cd..a5394f9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2207,
+/**/
     2206,
 /**/
     2205,