[Bug]: Data Grid + Metadata Injection - single columns are not injected without separator

[dave-csc]

Apache Hop version?

2.11, 2.12

Java version?

17.0.2

Operating system

Linux

What happened?

Injection of a single column in a Data grid transform is not correct when a separator is not specified: the single columns is created, but all the values are empty/nulls.

Check discussion #5128 for an example use case and possible workarounds.

Issue is not present on version 2.10

Issue Priority

Priority: 2

Issue Component

Component: Metadata, Component: Transforms