$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-GPG.git /var/lib/mock/f40-build-2016184-46162/root/chroot_tmpdir/scmroot/perl-Crypt-GPG
Cloning into '/var/lib/mock/f40-build-2016184-46162/root/chroot_tmpdir/scmroot/perl-Crypt-GPG'...
$ git fetch origin fc8aed1bfda7c3d8d96e8a91bcc8e429ed8e5ef7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-GPG
 * [new ref]         fc8aed1bfda7c3d8d96e8a91bcc8e429ed8e5ef7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc8aed1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild