External rings disappearing when moving

[flo-dup]

Describe the current behavior

When moving a voltage levels with several rings, it sometimes occur that only the central circle is kept, the other rings disappear.

Describe the expected behavior

All the rings are drawn while moving.

Describe the steps

• Chose a voltage level with several rings (buses)
• Draw the diagram with a depth of 0
• Move the voltage level

Environment

No response

Relevant Log Output

No response

Extra Information

No response

[flo-dup]

This is only happening on versions 1.5.0 and below. The refactoring done within the PR for v1.6.0 have solved this issue.

Nonetheless as this was not expected I think it's worth a try to investigate @massimo-ferraro. I pushed a new disappearing_rings branch with a unit test on top of v1.5.0: v1.5.0...disappearing_rings.

And more information about what's happening: when moving the node, the content of d parameter of the path of all the rings is emptied:

    <g class="nad-vl-nodes">
        <g transform="translate(16.31,-120.62)" id="0">
            <circle r="12.50" id="1" class="nad-vl300to500-0 nad-busnode"></circle>
            <path d="" id="2" class="nad-vl300to500-1 nad-busnode"></path>
            <path d="" id="3" class="nad-vl300to500-2 nad-busnode"></path>
            <path d="" id="4" class="nad-vl300to500-3 nad-busnode"></path>
        </g>
    </g>