Don't attempt to display input method guidance in expired minibuffers

This caused infinite waits in circumstances involving setting an input method
in a global minor mode.  This commit fixes bug #45792.

* lisp/international/quail.el (quail-show-guidance): Test the major mode is
not minibuffer-inactive-mode before proceding with the function.

1 files changed, 9 insertions, 4 deletions

diff --git a/lisp/international/quail.el b/lisp/international/quail.el
index 0901115cffe..c66aa6a5375 100644
--- a/lisp/international/quail.el
+++ b/lisp/international/quail.el
@@ -2027,10 +2027,15 @@ minibuffer and the selected frame has no other windows)."
   (bury-buffer quail-completion-buf)
 
   ;; Then, show the guidance.
-  (when (and (quail-require-guidance-buf)
-             (not input-method-use-echo-area)
-             (null unread-command-events)
-             (null unread-post-input-method-events))
+  (when (and 
+         ;; Don't try to display guidance on an expired minibuffer.  This
+         ;; would go into an infinite wait rather than executing the user's
+         ;; command.  Bug #45792.
+         (not (eq major-mode 'minibuffer-inactive-mode))
+         (quail-require-guidance-buf)
+         (not input-method-use-echo-area)
+         (null unread-command-events)
+         (null unread-post-input-method-events))
     (if (minibufferp)
         (if (eq (minibuffer-window) (frame-root-window))
             ;; Use another frame.  It is sure that we are using some