$ git clone -n https://src.fedoraproject.org/rpms/rust-ifcfg-devname.git /var/lib/mock/f40-build-739213-108886/root/chroot_tmpdir/scmroot/rust-ifcfg-devname
Cloning into '/var/lib/mock/f40-build-739213-108886/root/chroot_tmpdir/scmroot/rust-ifcfg-devname'...
$ git fetch origin e0a4f7c8d8b9a521a51b879709db41c43fa26c6c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ifcfg-devname
 * [new ref]         e0a4f7c8d8b9a521a51b879709db41c43fa26c6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0a4f7c Regenerate with rust2rpm v24