$ git clone -n https://src.fedoraproject.org/rpms/rust-v_htmlescape.git /var/lib/mock/f45-build-46007-830/root/chroot_tmpdir/scmroot/rust-v_htmlescape
Cloning into '/var/lib/mock/f45-build-46007-830/root/chroot_tmpdir/scmroot/rust-v_htmlescape'...
$ git fetch origin 1dc9f492aee873575aebf51dc5684b3da35d1feb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-v_htmlescape
 * [new ref]         1dc9f492aee873575aebf51dc5684b3da35d1feb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1dc9f49 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild