eztags multiple fields validation issue on v4.0.19

[mjurga]

Configuration:

netgen/tagsbundle v4.0.19
ibexa/oss v3.3.44

When a contentType has 2 eztags fields and one of them is required, validation on submition fails due to JS error:

ezplatform-admin-ui-content-edit-parts-js.js:9485 Uncaught TypeError: Cannot read properties of null (reading 'querySelector')                                                                                                             
       at EzTagsValidator.validateEzTags (ezplatform-admin-ui-content-edit-parts-js.js:9485:57)                                                                                                                                               
       at EzTagsValidator.validateField (ezplatform-admin-ui-content-edit-parts-js.js:5032:53)                                                                                                                                                
       at ezplatform-admin-ui-content-edit-parts-js.js:5106:32                                                                                                                                                                                
       at Array.forEach (<anonymous>)                                                                                                                                                                                                         
       at EzTagsValidator.isValid (ezplatform-admin-ui-content-edit-parts-js.js:5104:31)                                                                                                                                                      
       at getValidationResults (ezplatform-admin-ui-content-edit-parts-js.js:4654:29)                                                                                                                                                         
       at Array.map (<anonymous>)                                                                                                                                                                                                             
       at isFormValid (ezplatform-admin-ui-content-edit-parts-js.js:4710:40)                                                                                                                                                                  
       at HTMLButtonElement.clickHandler (ezplatform-admin-ui-content-edit-parts-js.js:4694:9)                                                                                                                                                
       at HTMLButtonElement.trigger (ezplatform-admin-ui-layout-js.js:2360:26)

Issue seems to be in netgen/tagsbundle/bundle/Resources/public/admin/js/fieldType/eztags.js

Regards,
Maciej Jurga [Kaliop]