$ git clone -n https://src.fedoraproject.org/rpms/rust-winit.git /var/lib/mock/f39-build-2182841-51247/root/chroot_tmpdir/scmroot/rust-winit
Cloning into '/var/lib/mock/f39-build-2182841-51247/root/chroot_tmpdir/scmroot/rust-winit'...
$ git fetch origin 859faff0a6f5980dbad0c74e3921b3e473c26bdd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-winit
 * [new ref]         859faff0a6f5980dbad0c74e3921b3e473c26bdd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 859faff Update to 0.29.8 (rhbz#2256344)