$ git clone -n https://src.fedoraproject.org/rpms/rust-async-compression.git /var/lib/mock/f40-build-2034858-47917/root/chroot_tmpdir/scmroot/rust-async-compression
Cloning into '/var/lib/mock/f40-build-2034858-47917/root/chroot_tmpdir/scmroot/rust-async-compression'...
$ git fetch origin 8f2cfb229e0c054252e7039fd63cdc58dcc8285e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-compression
 * [new ref]         8f2cfb229e0c054252e7039fd63cdc58dcc8285e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f2cfb2 Update to version 0.4.3; Fixes RHBZ#2235561