[Notes] Duplicate half-saved entries

[attah]

REPRODUCIBILITY (% or how often): 25-50% (conditions unclear)
BUILD ID = OS VERSION (Settings | About product): 5.1
HARDWARE (XA2, X10, X10 II, X10 III, Jolla C2, Jolla Mind2, ...): Xperia 10 III
DID IT WORK CORRECTLY ON THE PREVIOUS PUBLIC RELEASE: Yes

DESCRIPTION:
Sometimes i get two instances of a note - one with an earlier intermediate state of the contents.

PRECONDITIONS:
Not sure.

STEPS TO REPRODUCE:

1. Create a note
2. Maybe update it?

EXPECTED RESULT:
One instance of the note.

ACTUAL RESULT:
Two instances.

ADDITIONAL INFORMATION:

Maybe this is related? https://github.com/sailfishos/jolla-notes/commit/81faa263308e8ab62dee4ca2d2ad7c38af28edfb

CC: @dcaliste