fixes

src/assets/Assets.cpp

@@ -75,6 +75,7 @@ void Assets::extend(const Assets& assets) {
     for (auto entry : assets.atlases) {
         atlases[entry.first] = entry.second;
     }
+    animations.clear();
 	for (auto entry : assets.animations) {
 		animations.emplace_back(entry);
 	}

src/graphics/TextureAnimation.cpp

@@ -48,6 +48,7 @@ void TextureAnimator::update(float delta) {
 							  GL_COLOR_BUFFER_BIT, GL_NEAREST);
 		}
 	}
+    frameBuffer->unbind();
 	for (auto& elem : changedTextures) {
 		glBindTexture(GL_TEXTURE_2D, elem);
 		glGenerateMipmap(GL_TEXTURE_2D);