$ git clone -n https://src.fedoraproject.org/rpms/rust-ctrlc.git /var/lib/mock/f40-build-2081511-49767/root/chroot_tmpdir/scmroot/rust-ctrlc
Cloning into '/var/lib/mock/f40-build-2081511-49767/root/chroot_tmpdir/scmroot/rust-ctrlc'...
$ git fetch origin 60056202ee8002c5990575999ad4fe1c49ec1eee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ctrlc
 * [new ref]         60056202ee8002c5990575999ad4fe1c49ec1eee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6005620 Update to version 3.4.1; Fixes RHBZ#2237076