Fixes bug where avatar run-lock state can get confused after alt-tabbing

(cherry picked from commit 69dac251b6)

Sources/Plasma/PubUtilLib/plInputCore/plInputDevice.cpp

@@ -176,19 +176,16 @@ void plKeyboardDevice::HandleKeyEvent(plOSMsg message, plKeyDef key, bool bKeyDo
 	if (key == KEY_SHIFT)
 	{
 		fShiftKeyDown = bKeyDown;
-//		return;
 	}
 	if (key == KEY_CTRL)
 	{
 		fCtrlKeyDown = bKeyDown;
-//		return;
 	}
 	if (key == KEY_CAPSLOCK)
 	{
-		// Keyboards toggle the light on key-down, so I'm going with that.
+		if (!bKeyRepeat)
-		if (bKeyDown && !bKeyRepeat)
 		{
-			fCapsLockLock = !fCapsLockLock;
+			fCapsLockLock = (GetKeyState(KEY_CAPSLOCK) & 1) == 1;
 			plAvatarInputInterface::GetInstance()->ForceAlwaysRun(fCapsLockLock);
 		}
 	}
@@ -208,7 +205,8 @@ void plKeyboardDevice::HandleWindowActivate(bool bActive, HWND hWnd)
 {
 	if (bActive)
 	{
-		fCtrlKeyDown = false;
+		// Refresh the caps lock state
+		HandleKeyEvent(KEYDOWN, KEY_CAPSLOCK, nil, false);
 	}
 	else
 	{