mm-account: return MMS protocol if chatty chat is not an im

8 jobs for wip/mms_fix in 5 minutes and 7 seconds
Name Stage Failure
test:debian-gcc Test
Unexpected Pass:    0   
Skipped: 0
Timeout: 0

Full log written to /builds/kop316/chatty/_build/meson-logs/testlog.txt
FAILED: meson-test
/usr/bin/meson test --no-rebuild --print-errorlogs
ninja: build stopped: subcommand failed.
ERROR: Job failed: exit code 1