patch 8.2.3090: in rare cases the cursor may be somewhere in a folded line

Problem:    With concealing enabled and indirectly closing a fold the cursor
            may be somewhere in a folded line.
Solution:   Recompute the cursor position when the cursor line can be
            concealed. (closes #8480)

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3090,
 /**/
     3089,
 /**/