Correct OpenCRG height if reference line has no Z height

[tbleher]

No description provided.

[CarawaySeed42]

Is this really correct? The removed branch of the condition is also used if the refline has a constant height (no slope, reference_line_start_z = reference_line_end_z).
By removing the branch the evaluated height will then be offset by reference_line_start_z.

[tbleher]

Is this really correct? The removed branch of the condition is also used if the refline has a constant height (no slope, reference_line_start_z = reference_line_end_z). By removing the branch the evaluated height will then be offset by reference_line_start_z.

I will try to dig up the original context. I have an automated test for this, but will have to see what it tests exactly. This patch has shipped with the Hexagon OdrManager (and thus probably VTD) since sometime in 2020 (I integrated it into our internal toolchain in May 2020).

@MJSommerer Maybe you know some background on this? From our internal commits, I can see that this was tracked at https://redmine.vires.com/issues/10737 but I can't access that site anymore.