Fix keypad buttons not resetting their fixed state on physical key events

After right clicking a keypad button to fix it, pressing and releasing the
corresponding physical keyboard key would release the keypad button but
keep fixed invisibly set.

Author: Vogtinator

qml/NButton.qml

@@ -8,6 +8,8 @@ Rectangle {
     property alias text: label.text
     property bool active: pressed || mouseArea.containsMouse
     property bool pressed: false
+    // Pressing the right mouse button "locks" the button in enabled state
+    property bool fixed: false
     property int keymap_id: 1
 
     signal clicked()
@@ -21,6 +23,9 @@ Rectangle {
         if(pressed)
             clicked();
 
+        if(!pressed)
+            fixed = false;
+
         Emu.setButtonState(keymap_id, pressed);
     }
 
@@ -81,9 +86,6 @@ Rectangle {
 
         enabled: !multiMouseArea.mouseEnabled
 
-        // Pressing the right mouse button "locks" the button in enabled state
-        property bool fixed: false
-
         preventStealing: true
 
         anchors.centerIn: parent