$ git clone -n https://src.fedoraproject.org/rpms/perl-AnyEvent-HTTP.git /var/lib/mock/f45-build-21656-587/root/chroot_tmpdir/scmroot/perl-AnyEvent-HTTP
Cloning into '/var/lib/mock/f45-build-21656-587/root/chroot_tmpdir/scmroot/perl-AnyEvent-HTTP'...
$ git fetch origin 32b4b6789c9ad888c935822a35eee9f0c61de998:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-AnyEvent-HTTP
 * [new ref]         32b4b6789c9ad888c935822a35eee9f0c61de998 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32b4b67 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild