$ git clone -n https://src.fedoraproject.org/rpms/perl-MogileFS-Server.git /var/lib/mock/f39-build-1553565-36989/root/chroot_tmpdir/scmroot/perl-MogileFS-Server
Cloning into '/var/lib/mock/f39-build-1553565-36989/root/chroot_tmpdir/scmroot/perl-MogileFS-Server'...
$ git fetch origin 1561c6a57621a5193aae748c6a27590f25c5c013:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MogileFS-Server
 * [new ref]         1561c6a57621a5193aae748c6a27590f25c5c013 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1561c6a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild