Oops, update render size when resizing down too.

Hopefully #6247.

GPU/GLES/Framebuffer.cpp

@@ -752,10 +752,11 @@ void FramebufferManager::ResizeFramebufFBO(VirtualFramebuffer *vfb, u16 w, u16 h
 		// In case it gets thin and wide, don't resize down either side.
 		vfb->bufferWidth = std::max(vfb->bufferWidth, w);
 		vfb->bufferHeight = std::max(vfb->bufferHeight, h);
-		vfb->renderWidth = vfb->bufferWidth * renderWidthFactor;
-		vfb->renderHeight = vfb->bufferHeight * renderHeightFactor;
 	}
 
+	vfb->renderWidth = vfb->bufferWidth * renderWidthFactor;
+	vfb->renderHeight = vfb->bufferHeight * renderHeightFactor;
+
 	if (g_Config.bTrueColor) {
 		vfb->colorDepth = FBO_8888;
 	} else {
@@ -776,6 +777,9 @@ void FramebufferManager::ResizeFramebufFBO(VirtualFramebuffer *vfb, u16 w, u16 h
 		}
 	}
 
+	textureCache_->ForgetLastTexture();
+	fbo_unbind();
+
 	if (!useBufferedRendering_) {
 		if (vfb->fbo) {
 			fbo_destroy(vfb->fbo);
@@ -895,7 +899,6 @@ void FramebufferManager::DoSetRenderFrameBuffer() {
 
 	// None found? Create one.
 	if (!vfb) {
-		textureCache_->ForgetLastTexture();
 		vfb = new VirtualFramebuffer();
 		vfb->fbo = 0;
 		vfb->fb_address = fb_address;