patch 8.2.2221: if <Down> is mapped on the command line 'wildchar' is inserted

Problem:    If <Down> is mapped on the command line 'wildchar' is inserted.
Solution:   Set KeyTyped when using 'wildchar'. (closes #7552)
diff --git a/src/cmdexpand.c b/src/cmdexpand.c
index 4ebb693..d51f5c6 100644
--- a/src/cmdexpand.c
+++ b/src/cmdexpand.c
@@ -2680,7 +2680,10 @@
 	// Hitting <Down> after "emenu Name.": complete submenu
 	if (c == K_DOWN && cclp->cmdpos > 0
 		&& cclp->cmdbuff[cclp->cmdpos - 1] == '.')
+	{
 	    c = p_wc;
+	    KeyTyped = TRUE;  // in case the key was mapped
+	}
 	else if (c == K_UP)
 	{
 	    // Hitting <Up>: Remove one submenu name in front of the
@@ -2714,6 +2717,7 @@
 	    if (i > 0)
 		cmdline_del(cclp, i);
 	    c = p_wc;
+	    KeyTyped = TRUE;  // in case the key was mapped
 	    xp->xp_context = EXPAND_NOTHING;
 	}
     }
@@ -2738,6 +2742,7 @@
 	{
 	    // go down a directory
 	    c = p_wc;
+	    KeyTyped = TRUE;  // in case the key was mapped
 	}
 	else if (STRNCMP(xp->xp_pattern, upseg + 1, 3) == 0 && c == K_DOWN)
 	{
@@ -2763,6 +2768,7 @@
 	    {
 		cmdline_del(cclp, j - 2);
 		c = p_wc;
+		KeyTyped = TRUE;  // in case the key was mapped
 	    }
 	}
 	else if (c == K_UP)