I gave up with submodules in RTD.

I keep getting:

Submodule 'examples/riot/RIOT' (https://github.com/jcarrano/RIOT.git) registered for path 'examples/riot/RIOT'
Submodule 'examples/tinycbor/tinycbor' (https://github.com/intel/tinycbor.git) registered for path 'examples/tinycbor/tinycbor'
Cloning into '/home/docs/checkouts/readthedocs.org/user_builds/antidox/checkouts/latest/examples/riot/RIOT'...
Cloning into '/home/docs/checkouts/readthedocs.org/user_builds/antidox/checkouts/latest/examples/tinycbor/tinycbor'...
error: Server does not allow request for unadvertised object c0437eae785865cf05ed6f82e6f6e7d67cf6e9b1
Fetched in submodule path 'examples/riot/RIOT', but it did not contain c0437eae785865cf05ed6f82e6f6e7d67cf6e9b1. Direct fetching of that commit failed.

.readthedocs.yml

@@ -1,11 +1,8 @@
 version: 2
 
-# avoid cloning the RIOT repo, too heavy
-#~ submodules:
-  #~ exclude:
-    #~ - examples/riot/RIOT
+# avoid cloning the repos, they break RTD
 submodules:
-  include: all
+  exclude: all
 
 python:
   install: