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05b685989b5288bcfdc5bd4ae5c387a1da4dd58e
The mesh to curve node generated an empty curve because no edges were selected. This commit changes that node to not add a curve in that case. This also changes the curve to mesh node to not add a material when no mesh was created. Even though we don't expect null curves or meshes in this case, the change is harmless.
Sphinx Warnings
: WARNING: Could not obtain image size. :scale: option is ignored.
Note the preview is not accurate and warnings may not indicate real issues.
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