$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-HostIP.git /var/lib/mock/f45-build-26353-617/root/chroot_tmpdir/scmroot/perl-Sys-HostIP
Cloning into '/var/lib/mock/f45-build-26353-617/root/chroot_tmpdir/scmroot/perl-Sys-HostIP'...
$ git fetch origin 75377acd5f074812c43a22a44afead007f56478e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-HostIP
 * [new ref]         75377acd5f074812c43a22a44afead007f56478e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75377ac Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild