$ git clone -n https://src.fedoraproject.org/rpms/rust-zvariant.git /var/lib/mock/f41-build-1041550-18982/root/chroot_tmpdir/scmroot/rust-zvariant
Cloning into '/var/lib/mock/f41-build-1041550-18982/root/chroot_tmpdir/scmroot/rust-zvariant'...
$ git fetch origin 409471561e53ec4a6f5b1165d525bcb8a2fd06b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zvariant
 * [new ref]         409471561e53ec4a6f5b1165d525bcb8a2fd06b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4094715 Update to version 4.1.1; Fixes RHBZ#2277998