$ git clone -n https://src.fedoraproject.org/rpms/perl-Glib-IO.git /var/lib/mock/f39-build-1620043-38678/root/chroot_tmpdir/scmroot/perl-Glib-IO
Cloning into '/var/lib/mock/f39-build-1620043-38678/root/chroot_tmpdir/scmroot/perl-Glib-IO'...
$ git fetch origin 467f66d81d07e72a313eed1b39f41cf8c1ab03c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Glib-IO
 * [new ref]         467f66d81d07e72a313eed1b39f41cf8c1ab03c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 467f66d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild