Issue #3444419 by Grimreaper: Wrong detection of layout builder overrides

Closes #3444419

added 3 commits

• c20dbd2b - 1 commit from branch project:8.x-1.x
• e9a659ee - Issue #3444419 by Grimreaper: Wrong detection of layout builder overrides
• 718ff02f - Issue #3444419 by Grimreaper: Wrong detection of layout builder overrides

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merged