$ git clone -n https://src.fedoraproject.org/rpms/rust-iri-string.git /var/lib/mock/f40-build-2137604-50828/root/chroot_tmpdir/scmroot/rust-iri-string
Cloning into '/var/lib/mock/f40-build-2137604-50828/root/chroot_tmpdir/scmroot/rust-iri-string'...
$ git fetch origin 1e4a68ba9795d7d018f90c975a6e209d9900fcf4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-iri-string
 * [new ref]         1e4a68ba9795d7d018f90c975a6e209d9900fcf4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e4a68b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild