$ git clone -n https://src.fedoraproject.org/rpms/rust-winnow.git /var/lib/mock/f40-build-2521321-61798/root/chroot_tmpdir/scmroot/rust-winnow
Cloning into '/var/lib/mock/f40-build-2521321-61798/root/chroot_tmpdir/scmroot/rust-winnow'...
$ git fetch origin 3aa28d593775bb082ca371971ae10de298cc26e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-winnow
 * [new ref]         3aa28d593775bb082ca371971ae10de298cc26e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3aa28d5 Update to version 0.6.5; Fixes RHBZ#2266631