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)
diff --git a/src/version.c b/src/version.c
index d2cc322..8d3f2e7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4950,
+/**/
     4949,
 /**/
     4948,