$ git clone -n https://src.fedoraproject.org/rpms/rust-image.git /var/lib/mock/f40-build-2268926-54750/root/chroot_tmpdir/scmroot/rust-image
Cloning into '/var/lib/mock/f40-build-2268926-54750/root/chroot_tmpdir/scmroot/rust-image'...
$ git fetch origin 9a361002e0a44fa496b8f1426236a2f06330f09a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-image
 * [new ref]         9a361002e0a44fa496b8f1426236a2f06330f09a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a36100 Update to version 0.24.8; Fixes RHBZ#2258266