name[xmosaicframe] small refactoring: use an alias for root.querySelector
revisions#5ee6b9c8d679 [xmosaicframe] small refactoring: use an alias for root.querySelector, #886ba3945c2d [xmosaicframe] small refactoring: use an alias for root.querySelector, #31c12b7e2c6c [xmosaicframe] small refactoring: use an alias for root.querySelector
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