Scenario: 
From demos webapps... mkt1 is removed, temporarily bring it back in addon-pack: https://git.magnolia-cms.com/projects/ADDON/repos/addon-packs/commits/d05c375f84f7b1465ffb953b40bcfb0ee9008d5b

decoration to add marketingForm component template to mtk module is not correct with mtk2. See https://git.magnolia-cms.com/projects/ADDON/repos/marketing-automation/browse/marketing-automation-ui/src/main/resources/marketing-automation-ui/decorations/mtk/templates/pages/basic.yaml

 
 
 
Dev notes:

• mtk (mtk1) has been removed out of demo web app ce since 6.2.10-SN. See https://git.magnolia-cms.com/projects/PLATFORM/repos/ce/commits/b62e4dee61c1471567cf874ee54f9652ce944b8d.
• The MTK1, MTK2 are bundled in 6.2.10, MTK1 was removed just from demo webapps only
   

Potential docu improvement:

Explain that the customers have an option if they want to migrate their templates mtk1 to mtk2 or not yet