Gave the GPU determinism game property its own ID so that changing it to "Not Set" does not disable the emulation issues textbox.

Source/Core/DolphinWX/ISOProperties.cpp

@@ -424,7 +424,7 @@ void CISOProperties::CreateGUIControls(bool IsWad)
 	arrayStringFor_GPUDeterminism.Add(_("auto"));
 	arrayStringFor_GPUDeterminism.Add(_("none"));
 	arrayStringFor_GPUDeterminism.Add(_("fake-completion"));
-	GPUDeterminism = new wxChoice(m_GameConfig, ID_EMUSTATE, wxDefaultPosition, wxDefaultSize, arrayStringFor_GPUDeterminism);
+	GPUDeterminism = new wxChoice(m_GameConfig, ID_GPUDETERMINISM, wxDefaultPosition, wxDefaultSize, arrayStringFor_GPUDeterminism);
 	sGPUDeterminism->Add(GPUDeterminismText);
 	sGPUDeterminism->Add(GPUDeterminism);
 

Source/Core/DolphinWX/ISOProperties.h

@@ -149,6 +149,7 @@ private:
 		ID_EDITCHEAT,
 		ID_ADDCHEAT,
 		ID_REMOVECHEAT,
+		ID_GPUDETERMINISM,
 
 		ID_NAME,
 		ID_GAMEID,