AOSP Spell Checker works with only set system language

• /e/ version:0.15-q-20210312105636
• Device model(s): Xiaomi Mi A1, FP3+

Summary

Spell Checker checks errors only for the system language when in the past versions it had checked spell errors for the set keyboard language.

The problem

Steps to reproduce

-Set more then one keyboard (English and French) in Settings->System->Languages & input->Virtual keyboard->Android Keyboard (AOSP)->Languages -Open any any application when you can write like e.g. Notes -Write anything in one language you set e.g. in English but your system language has to be set to French -Made a mistake in one word and check Spell Checker to choose appropriate correction -You'll get suggestion for French language

What is the current behavior?

User gets Spell checker suggestion only for the language which is set as System user interface language

What is the expected correct behavior?

User should get Spell checker suggestion for the set keyboard language.

Solutions

Workaround

To use Spell Checker as desired you have to go to Settings->Languages & input->Spell checker->Languages and choose desired language. It is pretty time consuming.

Comments:

It seems that this issue comes from Lineage OS system. It has been reported at: https://gitlab.com/LineageOS/issues/android/-/issues/1723