$ git clone -n https://src.fedoraproject.org/rpms/rust-gtk4-macros.git /var/lib/mock/f40-build-2144108-50863/root/chroot_tmpdir/scmroot/rust-gtk4-macros
Cloning into '/var/lib/mock/f40-build-2144108-50863/root/chroot_tmpdir/scmroot/rust-gtk4-macros'...
$ git fetch origin f9b3cf9b4657ba50c43a4b9acc17995f695eeaf7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gtk4-macros
 * [new ref]         f9b3cf9b4657ba50c43a4b9acc17995f695eeaf7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9b3cf9 Update to version 0.7.2; Fixes RHBZ#2231645