$ git clone -n https://src.fedoraproject.org/rpms/perl-IPC-SysV.git /var/lib/mock/f41-build-815788-149783/root/chroot_tmpdir/scmroot/perl-IPC-SysV
Cloning into '/var/lib/mock/f41-build-815788-149783/root/chroot_tmpdir/scmroot/perl-IPC-SysV'...
$ git fetch origin 13247327c4ae0bf2668cdc399cff368420c8f0f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IPC-SysV
 * [new ref]         13247327c4ae0bf2668cdc399cff368420c8f0f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1324732 Increase release to favour standalone package