$ git clone -n https://src.fedoraproject.org/rpms/pam_krb5.git /var/lib/mock/f45-build-21313-583/root/chroot_tmpdir/scmroot/pam_krb5
Cloning into '/var/lib/mock/f45-build-21313-583/root/chroot_tmpdir/scmroot/pam_krb5'...
$ git fetch origin f05287a93bcc6224a24d12b75883c215cf777394:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam_krb5
 * [new ref]         f05287a93bcc6224a24d12b75883c215cf777394 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f05287a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild