$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-Argon2.git /var/lib/mock/f40-build-2621985-64821/root/chroot_tmpdir/scmroot/perl-Crypt-Argon2
Cloning into '/var/lib/mock/f40-build-2621985-64821/root/chroot_tmpdir/scmroot/perl-Crypt-Argon2'...
$ git fetch origin b83b2436b084466347864ac581b4e19489a82ce8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-Argon2
 * [new ref]         b83b2436b084466347864ac581b4e19489a82ce8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b83b243 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild