patch 8.2.2678: test for 'autoshelldir' does not reset the option

Problem:    Test for 'autoshelldir' does not reset the option.
Solution:   Reset the option after testing.
diff --git a/src/version.c b/src/version.c
index 012530f..76ab067 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2678,
+/**/
     2677,
 /**/
     2676,