$ git clone -n https://src.fedoraproject.org/rpms/rubygem-ipaddress.git /var/lib/mock/f40-build-2033850-47845/root/chroot_tmpdir/scmroot/rubygem-ipaddress
Cloning into '/var/lib/mock/f40-build-2033850-47845/root/chroot_tmpdir/scmroot/rubygem-ipaddress'...
$ git fetch origin 285d7070acdec985c8a3d99ecefee088e4955500:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-ipaddress
 * [new ref]         285d7070acdec985c8a3d99ecefee088e4955500 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 285d707 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild