$ git clone -n https://src.fedoraproject.org/rpms/rust-ctrlc.git /var/lib/mock/f41-build-side-1-3006124-36735/root/chroot_tmpdir/scmroot/rust-ctrlc
Cloning into '/var/lib/mock/f41-build-side-1-3006124-36735/root/chroot_tmpdir/scmroot/rust-ctrlc'...
$ git fetch origin cee4c5cc6772a083c7c5139be4be65b68508709c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ctrlc
 * [new ref]         cee4c5cc6772a083c7c5139be4be65b68508709c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cee4c5c Update to version 3.4.5; Fixes RHBZ#2304342