$ git clone -n https://src.fedoraproject.org/rpms/rust-fluent-syntax.git /var/lib/mock/f39-build-1627234-39366/root/chroot_tmpdir/scmroot/rust-fluent-syntax
Cloning into '/var/lib/mock/f39-build-1627234-39366/root/chroot_tmpdir/scmroot/rust-fluent-syntax'...
$ git fetch origin c657bdf81cef3c44cebc29909cf99322f1f229e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fluent-syntax
 * [new ref]         c657bdf81cef3c44cebc29909cf99322f1f229e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c657bdf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild