$ git clone -n https://src.fedoraproject.org/rpms/perl-Email-MIME-Kit.git /var/lib/mock/f39-build-1547808-36749/root/chroot_tmpdir/scmroot/perl-Email-MIME-Kit
Cloning into '/var/lib/mock/f39-build-1547808-36749/root/chroot_tmpdir/scmroot/perl-Email-MIME-Kit'...
$ git fetch origin e731794810fdd697ed3fc06520b3d8e7d883edec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Email-MIME-Kit
 * [new ref]         e731794810fdd697ed3fc06520b3d8e7d883edec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e731794 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild