Description of problem:
Adding custom errata to clone of a custom channel creates cloned errata instead of source errata being just published into the target channel.


Version-Release number of selected component (if applicable):
spacewalk-java-2.1.152-1.el6.noarch


How reproducible:
always


Steps to Reproduce:
1. Have a custom channel with few custom erratas in it
2. Clone that channel to new channel with no erratas
3. Note number of erratas shown in Errata -> Manage Errata
4. Add one of the errata to cloned channel using:
   Channel -> Manage Software Channels -> <your_cloned_channel> ->
   -> Errata -> Add -> Add Custom Errata
5. Select some errata and use confirmation button to add it
6. Note number of erratas shown in Errata -> Manage Errata


Actual results:
a) When you do point "5." above informational box appears saying
   "...scheduled 1 errata to be cloned to channel..." (note that
   "to be *cloned*" instead of "to be added")
b) Numbers from points "3." and "6." do not match => new erratum was created
c) When you locate original/source and cloned/target erratum in Errata ->
   -> Manage Errata they have only one channel selected in their "Channels" tab


Expected results:
a) Message should not mention cloning when I'm adding
b) Counts should match
c) I would expect that result would be that original/source erratum have 2
   channel checked in the Channels tab


Additional info:
This docs have some info on erratum cloning (maybe I do not understand the concept enough, but IMO I do):
https://access.redhat.com/site/documentation/en-US/Red_Hat_Satellite/5.6/html-single/Getting_Started_Guide/index.html#sect-Getting_Started_Guide-Channel_Management-Creating_and_Managing_Custom_Channels-Manage_Software_Channel_Details