Changing the height of a pane (using Lua) behaves differently from changing the width

Description of the problem or steps to reproduce

When I run this code:

function widen()
	CurView().Width = CurView().Width + 1
	CurView().lockWidth = true
	for i = 1, #tabs do
		if i ~= curTab then
			tabs[i]:Resize()
		end
	end
	CurView().lockWidth = false
end

It widens the tab and then resizes the rest of the tabs to fit the screen. However, running this code

function tallen()
	CurView().Height = CurView().Height + 1
	CurView().lockHeight = true
	for i = 1, #tabs do
		if i ~= curTab then
			tabs[i]:Resize()
		end
	end
	CurView().lockHeight = false
end

Does nothing.

Commit hash: af520cf
OS: macOS
Terminal: iTerm2

Reproduce the issue at commit af520cf using the Lua CurView().Width and CurView().Height snippets. Start by tracing CurView, the Resize calls, and the lockWidth/lockHeight properties, comparing the width and height paths; done means changing Height behaves consistently with changing Width and the pane layout is resized correctly.