Adding isManagedSidebar causes warnings

Describe the issue. What is the expected and unexpected behavior? Adding isManagedSidebar prop causes warnings/errors in header

index.js:2177 Warning: React does not recognize the `isManagedSidebar` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `ismanagedsidebar` instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in header (created by Context.Consumer)
    in PageHeader (created by VerticalPage)
    in div (created by Page)
    in Page (created by VerticalPage)

and in the sidebar

Warning: React does not recognize the `isManagedSidebar` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `ismanagedsidebar` instead. If you accidentally passed it from a parent component, remove it from the DOM element.
    in div (created by Context.Consumer)
    in PageSidebar (created by VerticalPage)
    in div (created by Page)
    in Page (created by VerticalPage)
    in VerticalPage (created by ErrorBoundary)

Please provide the steps to reproduce. Feel free to link CodeSandbox or another tool.

just add isManagedSidebar to the example here: https://github.com/patternfly/patternfly-react/blob/master/packages/react-core/src/components/Page/examples/Page.md

     <PageHeader
        isManagedSidebar
        logo="Logo"
        logoProps={logoProps}
        headerTools={<PageHeaderTools>header-tools</PageHeaderTools>}
        showNavToggle
        isNavOpen={isNavOpen}
        onNavToggle={this.onNavToggle}
      />

Is this a bug or enhancement? If this issue is a bug, is this issue blocking you or is there a work-around? This is a bug

[MariaAga]

@patternfly/react-core@4.32.1

[boaz0]

OK - if you want PF4 to control the sidebar state (open/close) pass isManagedSidebar in the Page component. I do not see any reason to put isManagedSidebar in PageHeader and seems like a mistake.

//cc @dtaylor113 - can you take a look at this? thanks.