$ git clone -n https://src.fedoraproject.org/rpms/rust-gtk4-sys0.5.git /var/lib/mock/f38-build-side-43-rust-devel-1411364-31433/root/chroot_tmpdir/scmroot/rust-gtk4-sys0.5
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411364-31433/root/chroot_tmpdir/scmroot/rust-gtk4-sys0.5'...
$ git fetch origin dda78735bd578d5f55e343522e3e76bea93d62b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gtk4-sys0.5
 * [new ref]         dda78735bd578d5f55e343522e3e76bea93d62b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dda7873 Initial import (gtk4-sys 0.5 compat package)