Fixes for merging
- Do not add mapping until we are sure that we can read from file
- Do not add empty Scatter1DPtr for X-section unless
equiv
is true. Otherwise we will try to merge empty Scatter1D objects causing SIGSEGV (i.e., around line 656 to 681 where - if we add empty Scatter1D there's the accessxsecs[i]->point(0)
which will cause the SIGSEGV on an empty Scatter1D). - Added some debugging information which is useful when we have some trouble merging.