Revert "Merge pull request #4490 from EmmanuelOga/master"
This behaviour doesn't actually make sense, the context of
the child should not be affected by the parent. See #10492.

This reverts commit 5f8274efe128ffeec8fa3179460f5167a078f007, reversing
changes made to 81e837e810460d066a2e5fc5a795366ec8ab2313.