$ git clone -n https://src.fedoraproject.org/rpms/rust-toml.git /var/lib/mock/f39-build-1624697-39088/root/chroot_tmpdir/scmroot/rust-toml
Cloning into '/var/lib/mock/f39-build-1624697-39088/root/chroot_tmpdir/scmroot/rust-toml'...
$ git fetch origin 2352422142b1468b614efb604def7c07c816b4be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-toml
 * [new ref]         2352422142b1468b614efb604def7c07c816b4be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2352422 Update to version 0.8.2; Fixes RHBZ#2237963