ID 417158 - [S] ToAvid: flix_dialogue property not set for panels with no dialogue

Problem summary
When no dialogue is present on a panel in Flix, flix_dialogue bin column in Avid will not have any data set. This results in "NO COLUMN DATA" to show in the viewer when using Timecode Burn-In effect.

Customer reported version
6.1.2

Steps to reproduce

1) Create a Sequence in Flix with two panels and type dialogue in one of the panels.

2) Publish this Sequence to Avid.

3) In Avid, add a new video track and apply the effect Timecode Burn-In to the Sequence.

4) In the Effect Editor, set Display 1 to take in the parameters shown below:​

Subtitles will be added to the Sequence based on the data found in the flix_dialogue column. If no dialogue was inputted in Flix, the column has no data at all, resulting in "NO COLUMN DATA" to be present as a subtitle.

Expected behaviour
If no dialogue is present, Flix should interpret this as an empty string when creating the AAF.

Actual behaviour

Reproduced by support
This bug has been reproduced in:

6.2.0 - Windows 10 - macOS 10.14.6

6.1.2 - macOS 10.14.6