Combo `TAP_CODE_DELAY` and `clear_weak_mods` (#15866)

quantum/process_keycode/process_combo.c

@@ -17,6 +17,7 @@
 #include "print.h"
 #include "process_combo.h"
 #include "action_tapping.h"
+#include "action.h"
 
 #ifdef COMBO_COUNT
 __attribute__((weak)) combo_t key_combos[COMBO_COUNT];
@@ -193,6 +194,9 @@ void clear_combos(void) {
 static inline void dump_key_buffer(void) {
     /* First call start from 0 index; recursive calls need to start from i+1 index */
     static uint8_t key_buffer_next = 0;
+#if TAP_CODE_DELAY > 0
+    bool delay_done = false;
+#endif
 
     if (key_buffer_size == 0) {
         return;
@@ -218,6 +222,15 @@ static inline void dump_key_buffer(void) {
 #endif
         }
         record->event.time = 0;
+        clear_weak_mods();
+
+#if TAP_CODE_DELAY > 0
+        // only delay once and for a non-tapping key
+        if (!delay_done && !is_tap_record(record)) {
+            delay_done = true;
+            wait_ms(TAP_CODE_DELAY);
+        }
+#endif
     }
 
     key_buffer_next = key_buffer_size = 0;