$ git clone -n https://src.fedoraproject.org/rpms/perl-JSON-Create.git /var/lib/mock/f40-build-779867-130508/root/chroot_tmpdir/scmroot/perl-JSON-Create
Cloning into '/var/lib/mock/f40-build-779867-130508/root/chroot_tmpdir/scmroot/perl-JSON-Create'...
$ git fetch origin ce7e57503d257845402f2239a5b18222e514494e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-JSON-Create
 * [new ref]         ce7e57503d257845402f2239a5b18222e514494e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce7e575 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild