[mrtk3 - data binding] Data sources with custom data source type ( != data) dont work when instantiated by DataConsumerCollection

[phwyfve]

This issue has been migrated a new MRTK repository, and the status of this issue will now be tracked at the following location:

• [mrtk3 - data binding] Data sources with custom data source type ( != data) dont work when instantiated by DataConsumerCollection MixedRealityToolkit/MixedRealityToolkit-Unity#202

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Describe the bug

When creating data source with data source type different than "data", then the DataConsumers don't work as expected, especially the ones instanciated by the DataConsumerCollection component : All TextMesh bound to DataConsumetText components will be reset with null values. For some reason the same sample with a data source type named "data" will have the TextMesh text correctly replaced by the expected source value.

To reproduce

Steps to reproduce the behavior:

1. Unzip the attached document in Assets folder of MRTKDev Template project.
2. Open the scene DataSourceFactory Tests
3. Enable Game object called FactoryData (working), and disable FactoryCustomDataType (not working), then press play. The DataConsumers should work correctly and create the items with correct text
4. Disable Game object called "FactoryData (working)", and enable "FactoryCustomDataType (not working)", then press play. The DataConsumers dont work anymore (still displaying {{text}}, or empty text )

Expected behavior

in step 4 the DataConsumers should work correctly and create the items with correct text

Your setup (please complete the following information)

• Unity Version 2021.3.9f1
• MRTK Version SHA-1: a577eb2

Target platform (please complete the following information)

• HoloLens 2
• Unity editor

Tests_Factory.zip