Fix layer switching from tap dances by redoing the keymap lookup (#17935)

tests/tap_dance/tap_dance_layers/tap_dance_defs.h

@@ -0,0 +1,29 @@
+// Copyright 2022 Sergey Vlasov (@sigprof)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum custom_keycodes {
+    // (FAST|SLOW)_xy = tap KC_x on press, tap KC_y on release.  For FAST_xy
+    // process_record_user() returns false to stop processing early; for
+    // SLOW_xy process_record_user() returns true, therefore all other key
+    // handlers are invoked.
+    FAST_AB = SAFE_RANGE,
+    FAST_CD,
+    SLOW_AB,
+    SLOW_CD,
+};
+
+enum tap_dance_ids {
+    TD_L_MOVE, // ACTION_TAP_DANCE_LAYER_MOVE(KC_APP, 1)
+    TD_L_TOGG, // ACTION_TAP_DANCE_LAYER_TOGGLE(KC_APP, 1)
+    TD_LT_APP, // similar to LT(1, KC_APP) with KC_RCTL on tap+hold or double tap
+};
+
+#ifdef __cplusplus
+}
+#endif