$ git clone -n https://src.fedoraproject.org/rpms/rust-winit.git /var/lib/mock/f41-build-side-1-3137315-39792/root/chroot_tmpdir/scmroot/rust-winit
Cloning into '/var/lib/mock/f41-build-side-1-3137315-39792/root/chroot_tmpdir/scmroot/rust-winit'...
$ git fetch origin 4a26b0ca6411690274b31100019777997eb7f19c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-winit
 * [new ref]         4a26b0ca6411690274b31100019777997eb7f19c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a26b0c Update to 0.30.5 (rhbz#2277513)