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/testdir/test_terminal3.vim b/src/testdir/test_terminal3.vim
index ab926b6..f4cc38a 100644
--- a/src/testdir/test_terminal3.vim
+++ b/src/testdir/test_terminal3.vim
@@ -502,6 +502,8 @@
     let expected = tmpfolder
   endif
   call assert_equal(expected, getcwd(winnr()))
+
+  set noasd
 endfunc
 
 " Test for modeless selection in a terminal
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,