How to submit a maintenance update for the
stable openSUSE releases?

Beispiel anhand von phpMyAdmin:

The command workflow is...
  osc mbranch phpMyAdmin
  osc co home:ecsos:branches:OBS_Maintained:phpMyAdmin

Then update both phpMyAdmin.openSUSE_13.2 and
phpMyAdmin.openSUSE_Leap_42.1 to 4.4.15.6 and commit.

Finally, submit
using "osc mr" or something like osc mr . -m "security update see boo#1012271" in the project directory.

osc mr -m "security update see boo#1012271" in home:ecsos:branches:OBS_Maintained:phpMyAdmin.