$ git clone -n https://src.fedoraproject.org/rpms/rust-sysinfo.git /var/lib/mock/f38-build-side-42-init-devel-873466-28448/root/chroot_tmpdir/scmroot/rust-sysinfo
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-873466-28448/root/chroot_tmpdir/scmroot/rust-sysinfo'...
$ git fetch origin 3350551c2f9157dc89f97b6a88b767730601ed49:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sysinfo
 * [new ref]         3350551c2f9157dc89f97b6a88b767730601ed49 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3350551 Update to version 0.28.4; Fixes RHBZ#2179453