Add Edit link of the parent source.

added 48 commits

• 65f55cab...ccbeb57d - 47 commits from branch project:8.x-2.x
• 2ebcacfd - Merge branch '8.x-2.x' into '8.x-2.x'

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added 1 commit

• 781eebd2 - Fix code styling.

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added 1 commit

• 87214bc2 - Fix code styling.

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added 1 commit

• 37f04247 - Fix code styling.

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