Aklakan opened a new issue, #3253:
URL: https://github.com/apache/jena/issues/3253
### Version
jena-5.5.0-SNAPSHOT
### What happened?
Element and Op of `E_Exists` and `E_NotExists` become inconsistent after
transform because Element is never updated. A syntax transform that renames
variables in the Element thus has no effect.
```java
public Expr copySubstitute(Binding binding)
{
Op op2 = Substitute.substitute(getGraphPattern(), binding) ;
return new E_NotExists(getElement(), op2) ; // !!! Element unchanged.
}
@Override
public Expr applyNodeTransform(NodeTransform nodeTransform)
{
Op op2 = NodeTransformLib.transform(nodeTransform, getGraphPattern()) ;
return new E_NotExists(getElement(), op2) ; /// Element unchanged.
}
```
### Relevant output and stacktrace
```shell
```
### Are you interested in making a pull request?
Yes
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