In case if nobody noticed:
right now system (physical) Back button on Android behaves like an idiot with Textra — instead of going one level up, as I expect it to do (go from current dialogue to list of all dialogues), it teleports me from chat to chat, someone's the same one several times in row, based not on nesting, but on history of addressing to Textra, I guess, which is incredibly unusable. Please, fix it already.