Final character in replied email is cut off

REPRODUCIBILITY (% or how often): always
BUILD ID = OS VERSION (Settings > About product):
REGRESSION: (compared to previous public release: Yes, No, ?): no


When replying to an email, the final character in the email you’re replying to is cut off. E.g., if the email ends in “Best wishes”, when you reply to it, it will say “> Best wishe”. Of course, if the email ends in an ‘invisible’ character like a space or a newline, the issue isn’t immediately apparent. This has been an issue forever, probably even since before version 1.0. It was reported on TJC years ago, but doesn’t seem to have been noticed: