$ git clone -n https://src.fedoraproject.org/rpms/rust-zerotrie.git /var/lib/mock/f45-build-46350-833/root/chroot_tmpdir/scmroot/rust-zerotrie
Cloning into '/var/lib/mock/f45-build-46350-833/root/chroot_tmpdir/scmroot/rust-zerotrie'...
$ git fetch origin 1f0535003e4167cbb40b786d679424f8ad04e066:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zerotrie
 * [new ref]         1f0535003e4167cbb40b786d679424f8ad04e066 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f05350 Update to version 0.2.5; Fixes RHBZ#2515914