lottie/render: keep mRle object in valid state after moving the object.

Change-Id: I15c377dc53dbe5b87184ca4751c3473f486a3121

src/vector/vdrawable.cpp

@@ -17,6 +17,7 @@ void VDrawable::preprocess()
             mRleTask = VRaster::instance().generateFillInfo(
                 std::move(mPath), std::move(mRle), mFillRule);
         }
+        mRle = VRle();
         mFlag &= ~DirtyFlag(DirtyState::Path);
     }
 }