The layout_builder_iframe_modal_update_8101() update hook which was introduced in
#3221612: Is there a way to only target blocks and not sections? →
installs malformed configuration. It accidentally adds the "layout_builder" prefix twice to the routes:
layout_builder_iframe_routes:
- layout_builder.layout_builder.configure_section
- layout_builder.layout_builder.remove_section
- layout_builder.layout_builder.remove_block
- layout_builder.layout_builder.add_section
- layout_builder.layout_builder.add_block
- layout_builder.layout_builder.update_block
- layout_builder.layout_builder.move_sections_form
- layout_builder.layout_builder.move_block_form
- layout_builder.layout_builder.translate_block
- layout_builder.layout_builder.translate_inline_block
Looking through the history of that ticket: these double prefixes were added in an early iteration and fixed in commit 28abc41, but it was not realized that this was also affecting the update hook.
The layout_builder_iframe_modal.settings config object contains invalid routes.
Fix the broken update hook. Add a new post-update hook that updates already existing broken config.
Changes looking good tested and works fine thanks for the patch!
Setting to RTBC