$ git clone -n https://src.fedoraproject.org/rpms/perl-Mojo-JWT.git /var/lib/mock/f45-build-24947-607/root/chroot_tmpdir/scmroot/perl-Mojo-JWT
Cloning into '/var/lib/mock/f45-build-24947-607/root/chroot_tmpdir/scmroot/perl-Mojo-JWT'...
$ git fetch origin 569a9a0e7256f868c8c9d614beae330c883789ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mojo-JWT
 * [new ref]         569a9a0e7256f868c8c9d614beae330c883789ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 569a9a0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild