Fix binding order in OpenGL rect

Author: JoelOtter

src/plugins/opengl/src/opengl_batch.cpp

@@ -181,13 +181,13 @@ void OpenGLBatch::drawRect(
 	glm::mat4x4 transform) {
 
 	auto& gl_shader = static_cast<OpenGLShader&>(shader);
-	uniforms.insert(uniforms.end(), SpriteBlock{transform});
-
 	if (bound_tex || bound_shader != &gl_shader) {
 		flush();
 	}
 	bound_shader = &gl_shader;
 
+	uniforms.insert(uniforms.end(), SpriteBlock{transform});
+
 	float right = x + width;
 	float bottom = y + height;
 	addVertex(x, y, 0.0f, 0.0f);