Description:
When using the Find and Replace feature, searching for the letter 'a' also returns all occurrences of the letters 'å' and 'ä', and vice versa. This drastically reduces the usefulness of the feature when editing Swedish documents.

This happens both in "normal" mode and regex mode.

Note that when the Find feature correctly discriminates between the three characters.

Steps to Reproduce:
1.Create a new document and type the letters aåä into it
2. Edit -> Find and Replace
3. Enter the letter a in the Find field, then click Find Next repeatedly. 

Actual Results:
The Find and Replace feature matches all three characters, although I was searching for only one of them.

Expected Results:
It would match only the first letter (a) and not the subsequent ones.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.0.5.2
Build ID: 64390860c6cd0aca4beafafcfd84613dd9dfb63a
CPU threads: 4; OS: Mac OS X 10.14.6; UI render: default; VCL: osx
Locale: sv-SE (sv_SE.UTF-8); UI: en-US
Calc: threaded