$ git clone -n https://src.fedoraproject.org/rpms/rust-lalrpop.git /var/lib/mock/f40-build-2183491-51262/root/chroot_tmpdir/scmroot/rust-lalrpop
Cloning into '/var/lib/mock/f40-build-2183491-51262/root/chroot_tmpdir/scmroot/rust-lalrpop'...
$ git fetch origin c00f2a77c049730753d6cb4570733bece614020d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lalrpop
 * [new ref]         c00f2a77c049730753d6cb4570733bece614020d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c00f2a7 Update to version 0.20.0; Fixes RHBZ#2189358