tree 8c82adf9c15c9cd9c4c9a770914d7749b89d5ba3
parent ecc95d46ec7acabad66cb5c6ab4b6b0368e53a35
author Gabriel Schine <thatguy@google.com> 1546028249 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1546479943 +0000

[modular][storymodel] Don't notify observers when the StoryModel doesn't change.

TEST=fx run-test story_model_owner_unittest

Change-Id: I66d86e9675764d78d8b221ae63c6461663f7e23d