Terrain brush doesn't respect target height

[BlackYps]

If you set a fixed height of terrain, it wont draw that fixed height, example setting a Target, Min, and Max Height of 10 will not longer draw the terrain at that fixed height, it will still grow/clamp/raise the height infinitely as if you had it set at target 255, min 0, and max 255. Its basically ignoring fixed set heights.
Reported here: https://forum.faforever.com/topic/8007/map-editor-v-0-8-issues

[ComradeNunn]

I confirm that this issue is true!

[BlackYps]

I couldn't find any obviously related changes since the previous release that would suddenly change the behaviour in v0.8.
What I did notice is that the brush behaves as expected when unchecking the Clamp option in the preferences. Can you confirm this? I'm not sure what the setting is supposed to accomplish, because breaking the brush is obviously not what it is supposed to do.