$ git clone -n https://src.fedoraproject.org/rpms/rust-gdk4.git /var/lib/mock/f41-build-side-1-3006120-36735/root/chroot_tmpdir/scmroot/rust-gdk4
Cloning into '/var/lib/mock/f41-build-side-1-3006120-36735/root/chroot_tmpdir/scmroot/rust-gdk4'...
$ git fetch origin 3a072ff2fe54bb147a74e5823903fe2e4f2e9f7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gdk4
 * [new ref]         3a072ff2fe54bb147a74e5823903fe2e4f2e9f7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a072ff Update to version 0.9.2; Fixes RHBZ#2314886