Description of problem:

Enable repos concurrently as shown below.   They never release lock even its 100% completed


time hammer -u "${ADMIN_USER}" -p "${ADMIN_PASSWORD}" repository-set enable --name="Red Hat Enterprise Linux 5 Server (RPMs)" --basearch="x86_64" --releasever="5Server" --product "Red Hat Enterprise Linux Server" --organization "${ORG}" 2>&1 &

time hammer -u "${ADMIN_USER}" -p "${ADMIN_PASSWORD}" repository-set enable --name="Red Hat Enterprise Linux 5 Server (RPMs)" --basearch="i386" --releasever="5Server" --product "Red Hat Enterprise Linux Server" --organization "${ORG}" 2>&1 &

  time hammer -u "${ADMIN_USER}" -p "${ADMIN_PASSWORD}" repository-set enable --name="Red Hat Enterprise Linux 6 Server (RPMs)" --basearch="x86_64" --releasever="6Server" --product "Red Hat Enterprise Linux Server" --organization "${ORG}"  2>&1 &

time hammer -u "${ADMIN_USER}" -p "${ADMIN_PASSWORD}" repository-set enable --name="Red Hat Enterprise Linux 6 Server (RPMs)" --basearch="i386" --releasever="6Server" --product "Red Hat Enterprise Linux Server" --organization "${ORG}" 2>&1 &


Once its done, if i try to sync 

  
  Required lock: read
  Conflicts with tasks:
  - https://<sat-server>/foreman_tasks/tasks/bf03ad39-8f58-4d75-a762-650b3d2f3350
Could not synchronize the repository:
  Required lock is already taken by other running tasks.
  Please inspect their state, fix their errors and resume them.
  
  Required lock: read
  Conflicts with tasks:
  - https://<sat-server>/foreman_tasks/tasks/3fe6659f-3975-4be4-96e5-b4cfc1034737
Could not synchronize the repository:
  Required lock is already taken by other running tasks.
  Please inspect their state, fix their errors and resume them.



Version-Release number of selected component (if applicable):

katello-2.2.0.16-1.el7sat.noarch
pulp-server-2.6.0.17-1.el7sat.noarch
candlepin-0.9.49.9-1.el7.noarch

How reproducible:


Steps to Reproduce:
1.Enable repos concurrently ( with background process)
2.
3.

Actual results:

Lock is not released. 

Expected results:

Release lock, such that user can procede for syning of content.
Additional info: