aws neptune-提交带有空字符串的查询时崩溃

脚本 " " (有空的空间)可以工作,但是 "" 空字符串崩溃。

gremlin> g.addV("Test").property("title", "Test node 1").property("a", "")
{"requestId":"111xxxx-xxx-xxx-xxx-xxx","code":"MalformedQueryException","detailedMessage":"Query parsing failed at line 1, character position at 62, error message : no viable alternative at input 'g.addV(\"Test\").property(\"title\",\"Test node 1\").property(\"a\",\"\"'"}
Type ':help' or ':h' for help.
Display stack trace? [yN]


gremlin> g.addV("Test").property("title", "Test node 1").property("a", " ")
==>v[98b22f0f-6be0-fb11-38cc-066bf7e17051]

这对Neo4J Gremlin很好,所以我怀疑这是一个Gremlin的问题。这是海王星的虫子还是特写?