Visual glitch while sub-menu is expanding / collapsing

Closes #3438039

added 4 commits

• 0cd72c15...f0b00b3a - 3 commits from branch project:1.x
• 2dab18cf - Visual glitch while sub-menu is expanding / collapsing

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added 1 commit

• 564471f4 - Visual glitch while sub-menu is expanding / collapsing

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added 2 commits

• d410a60a - 1 commit from branch project:1.x
• 18dfc67e - Visual glitch while sub-menu is expanding / collapsing

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merged