$ git clone -n https://src.fedoraproject.org/rpms/rust-winnow.git /var/lib/mock/f41-build-873410-16165/root/chroot_tmpdir/scmroot/rust-winnow
Cloning into '/var/lib/mock/f41-build-873410-16165/root/chroot_tmpdir/scmroot/rust-winnow'...
$ git fetch origin 0ec6e422eb0f2a33a6c57210c336b7a108ed8f6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-winnow
 * [new ref]         0ec6e422eb0f2a33a6c57210c336b7a108ed8f6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ec6e42 Update to version 0.6.11; Fixes RHBZ#2283673