$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk4-wayland.git /var/lib/mock/f40-build-2712816-72076/root/chroot_tmpdir/scmroot/rust-gdk4-wayland
Cloning into '/var/lib/mock/f40-build-2712816-72076/root/chroot_tmpdir/scmroot/rust-gdk4-wayland'...
$ git fetch origin fc3b2542151914dcbfc8b0bad51ebe1a66287c90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk4-wayland
 * [new ref]         fc3b2542151914dcbfc8b0bad51ebe1a66287c90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc3b254 Update to version 0.8.1; Fixes RHBZ#2262613