Handle unread-command-events consistently (bug#23980)

* src/keyboard.c (read_char): Events put into `unread-command-events'
with the form (t . EVENT) should always have the t stripped when read
out.
* test/src/keyboard-tests.el: New tests for `unread-command-events'.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 7ddd6b96747..2c29a643011 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -2809,6 +2809,9 @@ read_char (int commandflag, Lisp_Object map,
 
       if (EQ (c, make_number (-2)))
         return c;
+
+      if (CONSP (c) && EQ (XCAR (c), Qt))
+        c = XCDR (c);
   }
 
  non_reread: