This helps various clients to use MAM.
Fixes: #2338
Tests:
- Functional tests for ejabberd pass.
- Install ejabberd and enable MAM. Check that default is set to always
in the configuration.
- Without this change, install ejabberd and enable MAM. Then restart
plinth with this change. The configuration is changed from never to
always. After several minutes, ejabberd is running again.
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>