$ git clone -n https://src.fedoraproject.org/rpms/disruptor.git /var/lib/mock/f45-build-51883-904/root/chroot_tmpdir/scmroot/disruptor
Cloning into '/var/lib/mock/f45-build-51883-904/root/chroot_tmpdir/scmroot/disruptor'...
$ git fetch origin a0ecc4f949bcdead59be39cf4f415abc6880b621:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/disruptor
 * [new ref]         a0ecc4f949bcdead59be39cf4f415abc6880b621 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0ecc4f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild