$ git clone -n https://src.fedoraproject.org/rpms/pam-kwallet.git /var/lib/mock/f41-build-side-1-2650362-27586/root/chroot_tmpdir/scmroot/pam-kwallet
Cloning into '/var/lib/mock/f41-build-side-1-2650362-27586/root/chroot_tmpdir/scmroot/pam-kwallet'...
$ git fetch origin ca94a5e6012d6319bea1142193afe1a39ea1b867:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam-kwallet
 * [new ref]         ca94a5e6012d6319bea1142193afe1a39ea1b867 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca94a5e 6.1.4