$ git clone -n https://src.fedoraproject.org/rpms/rust-winit.git /var/lib/mock/f40-build-2728025-73148/root/chroot_tmpdir/scmroot/rust-winit
Cloning into '/var/lib/mock/f40-build-2728025-73148/root/chroot_tmpdir/scmroot/rust-winit'...
$ git fetch origin 5022b90a9bf1b3c69dc10bfaa89ca780128bc606:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-winit
 * [new ref]         5022b90a9bf1b3c69dc10bfaa89ca780128bc606 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5022b90 Update to 0.29.15 (rhbz#2268119)