Multiple ssh access types from a given user1/client to the same user2/server

I want to access from one user/client combination (say, user1@cl) to a user/server combination (say, user2@srv) via ssh, with two different types of Access: 1. Access type #1 would be restricted to interactions with a bazaar repository. For this, I added a line (#1) in ~user2/.ssh/authorized_keys like
command="bzr serve --inet --directory=/repodir --allow-writes",no-port-forwarding,no-X11-forwarding,no-agent-forwarding ssh-rsa ... user1@cl 2. Access type #2 would be a login shell. For this, I added a "usual" line (#2) in ~user2/.ssh/authorized_keys like
ssh-rsa ... user1@cl As I understand, and as I tested, both lines cannot be used simultaneously. I.e., if line #1 appears first in ~user2/.ssh/authorized_keys, then I would be able to interact with the bzr repo, but I will not be able to do [user1@cl]$ ssh user2@srv If line #2 appears first in ~user2/.ssh/authorized_keys, then I would be able to do ssh, but any bzr operation gives bzr: ERROR: Not a branch ... **Is there any way to work this out?** I am using RHEL7, but I guess this is not important. Related posts (but not addressing my case, as I understand): https://stackoverflow.com/questions/2419566/best-way-to-use-multiple-ssh-private-keys-on-one-client https://serverfault.com/questions/142997/what-options-can-be-put-into-a-ssh-authorized-keys-file https://serverfault.com/questions/749474/ssh-authorized-keys-command-option-multiple-commands https://askubuntu.com/questions/1962/how-can-multiple-private-keys-be-used-with-ssh