$ git clone -n https://src.fedoraproject.org/rpms/perl-POE-Component-Child.git /var/lib/mock/f40-build-2020258-46610/root/chroot_tmpdir/scmroot/perl-POE-Component-Child
Cloning into '/var/lib/mock/f40-build-2020258-46610/root/chroot_tmpdir/scmroot/perl-POE-Component-Child'...
$ git fetch origin 0c4ba0b3ef322a51f666fd5c52b6db84b54414f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-POE-Component-Child
 * [new ref]         0c4ba0b3ef322a51f666fd5c52b6db84b54414f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c4ba0b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild