$ git clone -n https://src.fedoraproject.org/rpms/rust-wayland-protocols.git /var/lib/mock/f42-build-side-1-3588350-46945/root/chroot_tmpdir/scmroot/rust-wayland-protocols
Cloning into '/var/lib/mock/f42-build-side-1-3588350-46945/root/chroot_tmpdir/scmroot/rust-wayland-protocols'...
$ git fetch origin df41fc42f67b721a125eb4041e18eaff713cdd34:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wayland-protocols
 * [new ref]         df41fc42f67b721a125eb4041e18eaff713cdd34 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df41fc4 Update to version 0.32.8; Fixes RHBZ#2362776