Procedural note:
You've changed the summary and focus of that ticket.
Do you have the same enviroment as the OP?
(i.e. using generic inlines and the 'Save as' button
functionality but without any multiple user simultaneous
interaction). Have you tried to reproduce it before
editing the ticket?
If not, you might be "stealing" a ticket instead of opening
a completely new one which would be the right thing to do.
Your description of the analysis of the issues doesn't show
you've taken in account OP's issue either it is not clear
both issues are the same.
Regards,
--
Ramiro Morales
Actually I've just reproduced (using trunk) the situation reported by the OP:
Simple two-model generic foreign key plus generic inlines setup in the
admin app, activation and usage of the save as button and no need to
add a second browser window in the mix. A very simple
to prepare and reproduce setup.
The other users that added comments to the ticket before
loosely described their problem as not related to the admin inlines
at all rather with more low level model formsets; in any
case they don't provide enough details to be able to know if they
are really contributing to the isolation of the original issue or
simply landed in that ticket with a search and found something
similar in its symptoms to their own issues.
Because of this I'm going to revert your changes to the ticket
and I'd like to ask you to open another ticket and move
what you've found so far there.
We might be in presence of he same issue but I think
the divergence of initial conditions show it's too early
to be sure of that.
Thanks,
--
Ramiro Morales