patch 8.1.2385: opening cmdline window with feedkeys() does not work

Problem:    Opening cmdline window with feedkeys() does not work. (Yegappan
            Lakshmanan)
Solution:   Recognize K_CMDWIN also when ex_normal_busy is set.
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 25f409b..769dcb8 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -1361,7 +1361,8 @@
 #ifdef FEAT_CMDWIN
 	if (c == cedit_key || c == K_CMDWIN)
 	{
-	    if (ex_normal_busy == 0 && got_int == FALSE)
+	    // TODO: why is ex_normal_busy checked here?
+	    if ((c == K_CMDWIN || ex_normal_busy == 0) && got_int == FALSE)
 	    {
 		/*
 		 * Open a window to edit the command line (and history).
diff --git a/src/testdir/test_cmdline.vim b/src/testdir/test_cmdline.vim
index 7a4979e..5e25979 100644
--- a/src/testdir/test_cmdline.vim
+++ b/src/testdir/test_cmdline.vim
@@ -843,3 +843,8 @@
   bwipeout bufb
   bwipeout bufc
 endfunc
+
+func Test_cmdwin_feedkeys()
+  " This should not generate E488
+  call feedkeys("q:\<CR>", 'x')
+endfunc
diff --git a/src/version.c b/src/version.c
index f7c6e34..abe541b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2385,
+/**/
     2384,
 /**/
     2383,