Issue with flex switches and switch warning

[3djc]

Is there an existing issue for this problem?

• I have searched the existing issues

What part of EdgeTX is the focus of this bug?

Transmitter firmware

Current Behavior

There is an issue with YAML saving of customs switches. The warnings are using only 1 leter to save instead of the usual format.
SA.SB,.. are saved as A,B,...
FL, FL2,.. are saved as .... L (all of them)

So when read, only FL1 gets populated, with the value of the last FL been encoded in warnings

Expected Behavior

Flex are saved in an error free format

Steps To Reproduce

Create flex switches, assign several to switch warning. Turn off, turn on. oh noooo

Version

Nightly (Please give date/commit below)

Transmitter

RadioMaster MT12

Operating System (OS)

No response

OS Version

No response

Anything else?

No response

[3djc]

This is another son (or daughter) of you know what 2.10 PR :D.

The faulty fonction is switchGetLetter() (fortunatly used only to save switch warnings). I'm discussion with @raphaelcoeffic the best way forward

Solution will have to involve companion too