$ git clone -n https://src.fedoraproject.org/rpms/pam-kwallet.git /var/lib/mock/f40-build-2518237-61735/root/chroot_tmpdir/scmroot/pam-kwallet
Cloning into '/var/lib/mock/f40-build-2518237-61735/root/chroot_tmpdir/scmroot/pam-kwallet'...
$ git fetch origin 3a937acd7ffdc3cc04d7739ad860a9c3205af6c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam-kwallet
 * [new ref]         3a937acd7ffdc3cc04d7739ad860a9c3205af6c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a937ac 6.0.1