Swipe in Reference field repeats text

Issue:
When paying someone else via a bank transfer, the Reference field works incorrectly if I swipe across the keyboard to type, instead of tapping each letter individually.

Specifically, if I swipe “Test”, the field ends up as TestTestTestTest … until the field is full

All other fields work fine, so something must be special here

Details to reproduce:
OS: iOS 13.7
Device: Apple iPhone XS
App Version: 3.50.0

Screenshots: