The "ghost reminder widgets" glitch

[CampelloManuel]

Describe the bug

too many reminders appear when going back & forth between the "note view" fragment & another app

how To Reproduce

1. make a note and add 1 reminder
2. open another app
3. go back & forth between the "note view" and the other app, using the recents page
4. See the error: many reminders appeared, all identical to the 1° one
5. go back to the "note list" view and reopen the note
6. there is only 1 reminder, because (I think) the new ones are just glitches and they're not saved on the database

Technical information

• any device, any OS version
• app version: 5.7.1 from f-droid, but it's also in the new build

[CampelloManuel]

It also happens when click a link on a note. This opens the browser and when you go back, the undesired widget appears.

It may be just a glitch. even going back & forth between an opened note & another app will add reminders to the note.

The culprit is TaskDetailFragment.onLoadFinished(), see // TODO

[CampelloManuel]

I added a temporary fix: remove all reminder-widgets while quitting the fragment view.
Since, while loading, we add them all back anyway, this is OK.
See TODO in TaskDetailFragment if you want to provide a better fix