My lp:~spiv/bzr/stacking-inventory branch has the client-side fix; pushing a stacked branch with this client should result in a branch that even a 1.13.1 client and server will work with. It's a pretty small, self-contained fix.
We still need to make a fix for the server to trigger 1.13.1 clients to send the missing data (part 1 of Robert's plan above).
My lp:~spiv/bzr/stacking-inventory branch has the client-side fix; pushing a stacked branch with this client should result in a branch that even a 1.13.1 client and server will work with. It's a pretty small, self-contained fix.
We still need to make a fix for the server to trigger 1.13.1 clients to send the missing data (part 1 of Robert's plan above).