Tested that this diff doesn't introduce a regression:
1. Receiving an edit entry operation before create entry - this works correctly
2. Receiving a change thread settings operation before create thread - this also works correctly
Also tested that we have a bug that this diff fixes. Created three operations that were processed in the following order:
1. Change thread name at timestamp T+1
2. Change thread description at T+1
3. Create thread at T
Before this diff, there were robotexts displayed for each of these, but the thread name wasn't changed. After this diff both thread name and description are updated.