$ git clone -n https://src.fedoraproject.org/rpms/rust-oxipng.git /var/lib/mock/f41-build-850107-165133/root/chroot_tmpdir/scmroot/rust-oxipng
Cloning into '/var/lib/mock/f41-build-850107-165133/root/chroot_tmpdir/scmroot/rust-oxipng'...
$ git fetch origin 4bd04f78bfbf37a879e8afd3df4e21dc6b447164:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-oxipng
 * [new ref]         4bd04f78bfbf37a879e8afd3df4e21dc6b447164 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4bd04f7 Re-enable features that require rust-image 0.25