Issue in the graph created using RecordStoreQueryPlugin when identical nodes present.

[Auriga2]

Description

Cannot split SOME of the nodes created by Import From RDF plugin which uses RecordStoreQueryPlugin. It throws the error Attempt to create transaction from source vertex that does not exist

Steps to Reproduce

1. Open Constellation from the Constellation Adaptors project. In Data Access View Run the Import From RDF plugin with below parameters: Input File: https://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=DESCRIBE+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FNicholas_Kyrgios%3E&format=text%2Fplain&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000&debug=on&run=+Run+Query+ File Format: N-Triples

2. Select the below node and run the Split Nodes Based on Identifier plugin with _ as the split character

The error below is thrown : Because:

But if you save the graph, reopen and try the same, all nodes split without any error, because the id2position[] is now rearranged:

Expected behaviour: No error is thrown when splitting. Actual behaviour: An error is thrown when splitting. Reproduces how often: 100% but only on some nodes, based on the arrangement.

Additional Information

n/a