RSRP-296679: Indenting a collapsed block of code doesn't give the same results with tab as it does with increase indent

If I collapse a block of code, highlight it, and then use the increase indent menu option then the entire block of code indents one tab per line but if I use the tab key instead then only the first line indents and it indents once for each non empty line in the collapsed block.

This code block when collapsed

public void Foo()
{
    Bar();
}

returns this

                public void Foo()
{
    Bar();
}

While this code block when collapsed

public void Foo()
{
    Bar();

    Bar();

    Bar();
}

returns this

                        public void Foo()
{
    Bar();

    Bar();

    Bar();
}

Decreasing the indent on a collapsed block of code from both the menu and using shift + tab dedents each line by one tab as expected.