$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-options.git /var/lib/mock/f40-build-2631292-65763/root/chroot_tmpdir/scmroot/rust-cargo-options
Cloning into '/var/lib/mock/f40-build-2631292-65763/root/chroot_tmpdir/scmroot/rust-cargo-options'...
$ git fetch origin 41189236c4d33d75a34dabc952bfef40a5a309dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-options
 * [new ref]         41189236c4d33d75a34dabc952bfef40a5a309dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4118923 Update to version 0.7.3; Fixes RHBZ#2269944