$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-POE-Server-TCP.git /var/lib/mock/f45-build-26818-619/root/chroot_tmpdir/scmroot/perl-Test-POE-Server-TCP
Cloning into '/var/lib/mock/f45-build-26818-619/root/chroot_tmpdir/scmroot/perl-Test-POE-Server-TCP'...
$ git fetch origin a004753043e8552bc87e14bc4d47412cad1509fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-POE-Server-TCP
 * [new ref]         a004753043e8552bc87e14bc4d47412cad1509fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a004753 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild