[Bug] Entries duplicate upon screen-reload

[Glitchy-Tozier]

This gets triggered by navigating to the location shown in the screenshots and doing one of the following:

• Lock and then unlock your screen
• press the home-button on your device (= keep the app running in the background) and then reopen the app.

The MH4U-app has the same problem, but that repository doesn't seem to use the issues-feature.

Screenshots