Debugger: Allow removing conditions from the breakpoint dialog

pcsx2-qt/Debugger/Breakpoints/BreakpointDialog.cpp

@@ -123,6 +123,11 @@ void BreakpointDialog::accept()
 			bp->cond.expression = expr;
 			bp->cond.expressionString = m_ui.txtCondition->text().toStdString();
 		}
+		else
+		{
+			bp->hasCond = false;
+			bp->cond = {};
+		}
 	}
 	if (auto* mc = std::get_if<MemCheck>(&m_bp_mc))
 	{
@@ -159,6 +164,11 @@ void BreakpointDialog::accept()
 			mc->cond.expression = expr;
 			mc->cond.expressionString = m_ui.txtCondition->text().toStdString();
 		}
+		else
+		{
+			mc->hasCond = false;
+			mc->cond = {};
+		}
 
 		int condition = 0;
 		if (m_ui.chkRead->isChecked())

pcsx2/GS/Renderers/DX12/GSDevice12.cpp

@@ -938,6 +938,7 @@ void GSDevice12::SetVSyncMode(GSVSyncMode mode, bool allow_present_throttle)
 
 	if (GetSwapChainBufferCount() != old_buffer_count)
 	{
+		ExecuteCommandList(true);
 		DestroySwapChain();
 		if (!CreateSwapChain())
 			pxFailRel("Failed to recreate swap chain after vsync change.");