$ git clone -n https://src.fedoraproject.org/rpms/pam-kwallet.git /var/lib/mock/f39-build-1626463-39285/root/chroot_tmpdir/scmroot/pam-kwallet
Cloning into '/var/lib/mock/f39-build-1626463-39285/root/chroot_tmpdir/scmroot/pam-kwallet'...
$ git fetch origin 4b4897c3f8a1a646fd052c90e044b6b25e1f0fc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam-kwallet
 * [new ref]         4b4897c3f8a1a646fd052c90e044b6b25e1f0fc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b4897c 5.27.9