patch 8.2.4950: text properties position wrong after shifting text

Problem:    Text properties position wrong after shifting text.
Solution:   Adjust the text properties when shifting a block of text.
            (closes #10418)

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4950,
 /**/
     4949,
 /**/