$ git clone -n https://src.fedoraproject.org/rpms/perl-IO-Async.git /var/lib/mock/f39-build-1527608-36160/root/chroot_tmpdir/scmroot/perl-IO-Async
Cloning into '/var/lib/mock/f39-build-1527608-36160/root/chroot_tmpdir/scmroot/perl-IO-Async'...
$ git fetch origin 3eb8dbf5ca0486684b562ad8b588b08697efb4e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IO-Async
 * [new ref]         3eb8dbf5ca0486684b562ad8b588b08697efb4e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3eb8dbf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild