wayland/lock: emit lockStateChanged on unlock

changelog/next.md

@@ -3,3 +3,4 @@
 - Fixed ScriptModel not sending role updates on changed data that compares equal by key or structure.
 - Fixed Hyprland workspaces keeping their old id after Hyprland changes it.
 - Fixed desktop entries being parsed incorrectly with trailing whitespace or CRLF line endings.
+- Fixed `WlSessionLock.locked` changes not being emitted on unlock.

src/wayland/session_lock.cpp

@@ -179,8 +179,9 @@ void WlSessionLock::unlock() {
 
 	this->surfaces.clear();
 
+	auto wasLocked = this->isLocked();
 	if (this->manager) this->manager->unlock();
-	if (this->isLocked()) emit this->lockStateChanged();
+	if (wasLocked) emit this->lockStateChanged();
 }
 
 void WlSessionLock::onScreensChanged() {