resolve "TypeError: Cannot redefine property: shape" issue
resolve "TypeError: Cannot redefine property: shape" issue

When same node registered twice. It gives error.
ex:
LiteGraph.registerNodeType("basic/test", MyAddNode);
LiteGraph.registerNodeType("basic/test", MyAddNode);

To redefine an object property with "Object.defineProperty" method, configurable property should be set on true ( default is false)
ex : Object.defineProperty( '...' , '...' , {configurable: true})
jagenjo/litegraph.js,jagenjo/litegraph.js,jagenjo/litegraph.js,jagenjo/litegraph.js,jagenjo/litegraph.js