build_vanilla.sh fails

[git-artes]

Hi,
Thanks for the great software. I wanted to use it on a fresh Ubuntu 24.04, and used the docker version as recommended. However, it fails with the following error:

=> ERROR [base_clones  9/23] RUN git clone --depth 1 -b new-namespaces   66.7s
------
 > [base_clones  9/23] RUN git clone --depth 1 -b new-namespaces https://github.com/f4exb/libsigmf.git     && cd libsigmf     && git submodule init     && git submodule update --depth 1     && cd ..:
0.370 Cloning into 'libsigmf'...
3.429 Submodule 'external/flatbuffers' (https://github.com/google/flatbuffers.git) registered for path 'external/flatbuffers'
3.431 Submodule 'external/json' (https://github.com/nlohmann/json.git) registered for path 'external/json'
3.511 Cloning into '/opt/build/libsigmf/external/flatbuffers'...
10.94 Cloning into '/opt/build/libsigmf/external/json'...
31.97 From https://github.com/google/flatbuffers
31.97  * branch            d8210d5a83faa345046648e520d82b54ea724e35 -> FETCH_HEAD
32.04 Submodule path 'external/flatbuffers': checked out 'd8210d5a83faa345046648e520d82b54ea724e35'
66.58 error: RPC failed; curl 92 HTTP/2 stream 7 was not closed cleanly: CANCEL (err 8)
66.58 error: 4406 bytes of body are still expected
66.59 fetch-pack: unexpected disconnect while reading sideband packet
66.59 fatal: early EOF
66.59 fatal: fetch-pack: invalid index-pack output
66.59 fatal: Fetched in submodule path 'external/json', but it did not contain e7b3b40b5a95bc74b9a7f662830a27c49ffc01b4. Direct fetching of that commit failed.
------
Dockerfile:133
--------------------
 132 |     #   libsigmf
 133 | >>> RUN git clone --depth 1 -b new-namespaces https://github.com/f4exb/libsigmf.git \
 134 | >>>     && cd libsigmf \
 135 | >>>     && git submodule init \
 136 | >>>     && git submodule update --depth 1 \
 137 | >>>     && cd ..
 138 |     #   SGP4
--------------------
ERROR: failed to solve: process "/bin/sh -c git clone --depth 1 -b new-namespaces https://github.com/f4exb/libsigmf.git     && cd libsigmf     && git submodule init     && git submodule update --depth 1     && cd .." did not complete successfully: exit code: 128

This has also been reported on the sdrangel github (see f4exb/sdrangel#2231).

Any idea how to solve it?
Thanks!