Annotated Corpus Map forgets "Annotation" setting

[wvdvegte]

Describe the bug
If in Annotated Corpus Map Annotation > From variable is selected, this setting is changed to DBSCAN after saving the workflow and re-opening it.

To Reproduce
Open the workflow ACM from variable bug.ows.zip, which was saved with Annotated Corpus Map from variable 'Category'. Opening Annoated Corpus Map shows that the map is set to annotate based on DBSCAN. Change to From variable > Category, save the workflow and re-open it: the map is again annotated based on DBSCAN.

Expected behavior
The setting shouldn't change after saving and reopening the workflow

Orange version:
3.37.0

Text add-on version:
1.16.1

Operating system:
Mac OS Sequoia