Comment # 1 on bug 1184399 from Oliver Kurz

Well, the conflicting process was zypper as visible in "System management is
locked by the application with pid 1286 (zypper)." which in the case of
openqaworker3 was likely triggered by a salt action or also manually. But I
think that does not matter because a system service should not fail if a user
calls zypper.