Track resolveTexture usage correctly

src/rhi/qrhimetal.mm

@@ -1546,6 +1546,8 @@ void QRhiMetal::beginPass(QRhiCommandBuffer *cb,
                 QRHI_RES(QMetalTexture, colorAttachment.texture())->lastActiveFrameSlot = currentFrameSlot;
             else if (colorAttachment.renderBuffer())
                 QRHI_RES(QMetalRenderBuffer, colorAttachment.renderBuffer())->lastActiveFrameSlot = currentFrameSlot;
+            if (colorAttachment.resolveTexture())
+                QRHI_RES(QMetalTexture, colorAttachment.resolveTexture())->lastActiveFrameSlot = currentFrameSlot;
         }
         if (rtTex->m_desc.depthStencilBuffer())
             QRHI_RES(QMetalRenderBuffer, rtTex->m_desc.depthStencilBuffer())->lastActiveFrameSlot = currentFrameSlot;

src/rhi/qrhivulkan.cpp

@@ -1833,6 +1833,8 @@ void QRhiVulkan::activateTextureRenderTarget(QRhiCommandBuffer *, QRhiTextureRen
             rbD->backingTexture->layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
             rbD->lastActiveFrameSlot = currentFrameSlot;
         }
+        if (colorAttachment.resolveTexture())
+            QRHI_RES(QVkTexture, colorAttachment.resolveTexture())->lastActiveFrameSlot = currentFrameSlot;
     }
     if (rtD->m_desc.depthStencilBuffer())
         QRHI_RES(QVkRenderBuffer, rtD->m_desc.depthStencilBuffer())->lastActiveFrameSlot = currentFrameSlot;