$ git clone -n https://src.fedoraproject.org/rpms/rust-ifcfg-devname.git /var/lib/mock/f45-build-42511-794/root/chroot_tmpdir/scmroot/rust-ifcfg-devname
Cloning into '/var/lib/mock/f45-build-42511-794/root/chroot_tmpdir/scmroot/rust-ifcfg-devname'...
$ git fetch origin 46a0d9a86dd976d6b677a928803095651878eb72:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ifcfg-devname
 * [new ref]         46a0d9a86dd976d6b677a928803095651878eb72 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46a0d9a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild