Keyboard Input modifiers do not block actions.

This means, if you press "F" while holding "shift" and there is and
action registered for "F" that action should be pressed.
This commit restore this behaviour, lost when implementing
is_action_just_pressed.
If you want "blocking modifiers" you should code it via script.

Fixes 6826

core/input_map.cpp

@@ -107,7 +107,7 @@ List<StringName> InputMap::get_actions() const {
 	return actions;
 }
 
-List<InputEvent>::Element *InputMap::_find_event(List<InputEvent> &p_list,const InputEvent& p_event, bool p_mod_ignore=false) const {
+List<InputEvent>::Element *InputMap::_find_event(List<InputEvent> &p_list,const InputEvent& p_event, bool p_action_test) const {
 
 	for (List<InputEvent>::Element *E=p_list.front();E;E=E->next()) {
 
@@ -123,7 +123,13 @@ List<InputEvent>::Element *InputMap::_find_event(List<InputEvent> &p_list,const
 
 			case InputEvent::KEY: {
 
-				same=(e.key.scancode==p_event.key.scancode && (p_mod_ignore || e.key.mod == p_event.key.mod));
+				if(p_action_test) {
+					uint32_t code = e.key.get_scancode_with_modifiers();
+					uint32_t event_code = p_event.key.get_scancode_with_modifiers();
+					same=(e.key.scancode==p_event.key.scancode && (!p_event.key.pressed || ((code & event_code) == code)));
+				} else {
+					same=(e.key.scancode==p_event.key.scancode && e.key.mod == p_event.key.mod);
+				}
 
 			} break;
 			case InputEvent::JOYPAD_BUTTON: {
@@ -230,7 +236,7 @@ bool InputMap::event_is_action(const InputEvent& p_event, const StringName& p_ac
 		return p_event.action.action==E->get().id;
 	}
 
-	return _find_event(E->get().inputs,p_event,!p_event.is_pressed())!=NULL;
+	return _find_event(E->get().inputs,p_event,true)!=NULL;
 }
 
 const Map<StringName, InputMap::Action>& InputMap::get_action_map() const {

core/input_map.h

@@ -46,7 +46,7 @@ private:
 	mutable Map<StringName, Action> input_map;
 	mutable Map<int,StringName> input_id_map;
 
-	List<InputEvent>::Element *_find_event(List<InputEvent> &p_list,const InputEvent& p_event, bool p_mod_ignore) const;
+	List<InputEvent>::Element *_find_event(List<InputEvent> &p_list,const InputEvent& p_event, bool p_action_test=false) const;
 
 	Array _get_action_list(const StringName& p_action);
 	Array _get_actions();

main/input_default.cpp

@@ -381,15 +381,12 @@ void InputDefault::parse_input_event(const InputEvent& p_event) {
 	if (!p_event.is_echo()) {
 		for (const Map<StringName,InputMap::Action>::Element *E=InputMap::get_singleton()->get_action_map().front();E;E=E->next()) {
 
-			if (InputMap::get_singleton()->event_is_action(p_event,E->key())) {
-
-				if(is_action_pressed(E->key()) != p_event.is_pressed()) {
-					Action action;
-					action.fixed_frame=Engine::get_singleton()->get_fixed_frames();
-					action.idle_frame=Engine::get_singleton()->get_idle_frames();
-					action.pressed=p_event.is_pressed();
-					action_state[E->key()]=action;
-				}
+			if (InputMap::get_singleton()->event_is_action(p_event,E->key()) && is_action_pressed(E->key()) != p_event.is_pressed()) {
+				Action action;
+				action.fixed_frame=Engine::get_singleton()->get_fixed_frames();
+				action.idle_frame=Engine::get_singleton()->get_idle_frames();
+				action.pressed=p_event.is_pressed();
+				action_state[E->key()]=action;
 			}
 		}
 	}