$ git clone -n https://src.fedoraproject.org/rpms/rust-zerovec.git /var/lib/mock/f41-build-side-115235-61077940-6588712/root/chroot_tmpdir/scmroot/rust-zerovec
Cloning into '/var/lib/mock/f41-build-side-115235-61077940-6588712/root/chroot_tmpdir/scmroot/rust-zerovec'...
$ git fetch origin 1d2c204ec64455c73e2bb337bddd69281d25bf5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zerovec
 * [new ref]         1d2c204ec64455c73e2bb337bddd69281d25bf5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d2c204 Update to version 0.11.2; Fixes RHBZ#2328451