$ git clone -n https://src.fedoraproject.org/rpms/rust-local-encoding.git /var/lib/mock/f39-build-1595295-38323/root/chroot_tmpdir/scmroot/rust-local-encoding
Cloning into '/var/lib/mock/f39-build-1595295-38323/root/chroot_tmpdir/scmroot/rust-local-encoding'...
$ git fetch origin e8f7f87c9a8672923b2751934feb030215a0c3e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-local-encoding
 * [new ref]         e8f7f87c9a8672923b2751934feb030215a0c3e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8f7f87 Regenerate with rust2rpm v24