P: naming and metadata usage when creating HDR and/or PANO

Hello,
i've and problem when creating HDR or PANOS. Assume we have three pics for HDR (Pano is exactly the same in this case): 1.DNG, 2.DNG and 3.DNG. When creating the HDR LRc will create a Targetfile with the name activefile-HDR.DNG, so if 2.DNG was the active file the HDR is named 2-HDR.DNG. So that function is fine. We can set a refererce file for the naming. But LRc is ignoring that reference for filling the metadata . In case of HDR it seem that metadata is always used from the most underexposed pic instead of the reference (active) pic. Most other HDR software respects the users choice and takes even the metadata fro the reference file. I think its an error by design and should be changed.