Description
A small thing I noticed related to TINKERPOP-2931.
With an empty graph, the traversal
g.mergeV([:]).option(onMatch, ['~label', 'vertex'])
will create a new vertex, and since onMatch failed it doesn't apply anything inside regardless if it's a valid map or not, and will return
v[0]
This won't have any impact function-wise, since the onMatch map will be validated when the vertex is found, but just wondering if we should validate this on construction instead of execution?
A more visual example on 3.6.3-SNAPSHOT console.
gremlin> g.mergeV([:]).option(Merge.onMatch, ['~label':'vertex']) ==>v[0] gremlin> g.mergeV([:]).option(Merge.onMatch, ['~label':'vertex']) Property key can not be a hidden key: ~label Type ':help' or ':h' for help. Display stack trace? [yN]n gremlin>