Cannot install Render Workbench

[feeela]

Using FreeCAD 1.0.2 via snap

A) When trying to install the Render Workbench via the Addon-Manager, the installation fails with the following error:

Git returned a non-zero exit status: -1
Called with: /snap/freecad/1634/usr/bin/git clone --recurse-submodules https://github.com/FreeCAD/FreeCAD-render /home/******/snap/freecad/common/Mod/Render

Returned stderr:
Cloning into '/home/******/snap/freecad/common/Mod/Render'...
fatal: early EOF

See also: https://github.com/FreeCAD/FreeCAD/issues/21740

B) When I do install the Render Workbench manually as described here, it is visible in the Addon-Manager as "installed". But no such workbench can be selected (not even after refreshing the addon local cache and restarting FreeCAD).

Also no settings for "Render" are visible in the FreeCAD setting (as suggested in your EngineInstall docs).

How can I use the Render Workbench with FreeCAD v1.0.2?