patch 8.2.2068: transparent syntax item uses start/end of containing region

Problem:    Transparent syntax item uses start/end of containing region.
Solution:   Do not change the startpos and endpos of a transparent region to
            that of its containing region. (Adrian Ghizaru, closes #7349,
            closes #7391)
diff --git a/src/version.c b/src/version.c
index e92d754..2928722 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2068,
+/**/
     2067,
 /**/
     2066,