$ git clone -n https://src.fedoraproject.org/rpms/rust-terminal_size.git /var/lib/mock/f39-build-1636757-39940/root/chroot_tmpdir/scmroot/rust-terminal_size
Cloning into '/var/lib/mock/f39-build-1636757-39940/root/chroot_tmpdir/scmroot/rust-terminal_size'...
$ git fetch origin e6ce5be41d5dde0ceac49bc9eb66a96efcb92922:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-terminal_size
 * [new ref]         e6ce5be41d5dde0ceac49bc9eb66a96efcb92922 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6ce5be Update to version 0.3.0; Fixes RHBZ#2239057