$ git clone -n https://src.fedoraproject.org/rpms/rubygem-vcr.git /var/lib/mock/f40-build-2034514-47897/root/chroot_tmpdir/scmroot/rubygem-vcr
Cloning into '/var/lib/mock/f40-build-2034514-47897/root/chroot_tmpdir/scmroot/rubygem-vcr'...
$ git fetch origin 026afe127d6ee9abeab05e41ecf8a79bb2c12761:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-vcr
 * [new ref]         026afe127d6ee9abeab05e41ecf8a79bb2c12761 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 026afe1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild