[UnigramDev/Unigram/media-collection-loading](https://github.com/UnigramDev/Unigram/tree/media-collection-loading) • [e9d2435](https://github.com/UnigramDev/Unigram/commit/e9d243524817f8f9b178ceea0f2b8cae047c1b6c) • _1 files, +21/-4_
Handle errors and cancellation when loading media

An Error response fell through silently, and the cancellation token was
never checked, so an abandoned load still appended to the collection.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

[#unigram](?q=%23unigram)