[Bug]: Block until transform finish - Transform name drop down shows repeating values

[alexmller]

Apache Hop version?

2.12.0

Java version?

OpenJDK Runtime Environment (build 20+36-2344)

Operating system

macOS

What happened?

Scenario

I connect the Block until transforms finish to more than one subsequent transform using the Copy method. When I open the block transform's dialog I want to choose which transforms to wait for.

Expected result

The Transform name drop down shows any transform name once but not the blocking transform itself.

Actual result

The blocking transform itself is not shown, as it is supposed to be. Transform names in the drop down are repeated, depending on the number of outgoing hops using the Copy method.

General information

The attached transform shows this anomaly:

With three outbound hops, the connected transforms are shown twice while unconnected are shown three times. Inbound hops do not cause any issues.

Workaround

Select the transforms to block before connecting outbound hops.

Issue Priority

Priority: 3

Issue Component

Component: Hop Gui

[hansva]

.take-issue

[hansva]

thanks for the great writup @alexmller

[hansva]

Additionally, the transform names in front of the blocking transform should not be shown.