$ git clone -n https://src.fedoraproject.org/rpms/rubygem-vault.git /var/lib/mock/f45-build-35422-695/root/chroot_tmpdir/scmroot/rubygem-vault
Cloning into '/var/lib/mock/f45-build-35422-695/root/chroot_tmpdir/scmroot/rubygem-vault'...
$ git fetch origin e552a2446bcc3af26699e40da45db180adb701cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-vault
 * [new ref]         e552a2446bcc3af26699e40da45db180adb701cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e552a24 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild