$ git clone -n https://src.fedoraproject.org/rpms/perl-IO-Event.git /var/lib/mock/f39-build-1437583-32149/root/chroot_tmpdir/scmroot/perl-IO-Event
Cloning into '/var/lib/mock/f39-build-1437583-32149/root/chroot_tmpdir/scmroot/perl-IO-Event'...
$ git fetch origin 474621a952a07ff36f3ad0fa0031b2c1d3f1033a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IO-Event
 * [new ref]         474621a952a07ff36f3ad0fa0031b2c1d3f1033a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 474621a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild