$ git clone -n https://src.fedoraproject.org/rpms/rust-encoding.git /var/lib/mock/f39-build-1455455-32916/root/chroot_tmpdir/scmroot/rust-encoding
Cloning into '/var/lib/mock/f39-build-1455455-32916/root/chroot_tmpdir/scmroot/rust-encoding'...
$ git fetch origin 2e4ce9e50d3675f9c07526b18bcaf9d4ade242e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-encoding
 * [new ref]         2e4ce9e50d3675f9c07526b18bcaf9d4ade242e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e4ce9e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild