Description of problem:
After the atomic repo was added and synced on RHUA, an atomic host won't be able to pull the content. The repo should be re-synced again. 

Version-Release number of selected component (if applicable):
RHUI3 GA

How reproducible:
always

Steps to Reproduce:
1. add atomic repo
2. sync it
3. create a package for atomic host
4. install atomic package on atomic host
5. pull content

Actual results:
10.9.2.95 - - [27/Feb/2017:08:44:25 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/config HTTP/1.1" 200 38 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:25 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/summary.sig HTTP/1.1" 404 285 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:25 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/summary HTTP/1.1" 200 121 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:26 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/deltas/kM/lzW+z_8cVchYauDyyQS8CSjwQs1NAW6eDi7dFuXpc-aadKTtaVRJKnyCJ59u_lm_+4lS6VV3+DWaZxfVejZ3Q/superblock HTTP/1.1" 404 380 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:26 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/objects/69/a74a4ed6954492a7c82279f6efe59bffb8952e95577f8359a6717d57a36774.commitmeta HTTP/1.1" 200 837 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:26 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/objects/69/a74a4ed6954492a7c82279f6efe59bffb8952e95577f8359a6717d57a36774.commit HTTP/1.1" 200 230 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:26 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/objects/69/a74a4ed6954492a7c82279f6efe59bffb8952e95577f8359a6717d57a36774.commitmeta HTTP/1.1" 200 837 "-" "ostree libsoup/2.48.1"
10.9.2.95 - - [27/Feb/2017:08:44:26 -0500] "GET /pulp/ostree/web//content/dist/rhel/rhui/atomic/7/7Server/x86_64/ostree/repo/objects/7d/568e2b1379d3df72a592c3693163282db840537632cfb159e5749b261aaae8.dirtree HTTP/1.1" 404 355 "-" "ostree libsoup/2.48.1"

Additional info:
Les, please include it into Known issues. Thanks.