Incompatible projection data due to differences in bed position

When carrying out motion corrected reconstruction, previously, it appeared STIR ignored the bed position when reading projection data, but now throws up an error.

Carrying out the following command:

INPUT=sino_pmroverlap OUTPUT=recon_motion_MCIR_normalise NORM=normacfsino BACKGROUND=backgroundsino OSMAPOSL OSMAPOSL_with_motion.par

The normalisation files with the prefix normacfsino are created with vertical and horizontal bed positions at the origin (0,0). The sinogram projection data data with prefix sino_pmroverlap have different bed positions. Previous versions of STIR would successfully run this reconstruction, however, now states:

WARNING: BinNormalisationFromProjData: incompatible projection data

displays info as if ran list_projdata_info for both sinogram & norm

ERROR: Single gate objective functions is not set correctly!

Manually adjusting the bed positions to match does appear to fix the issue.

Start by reproducing the OSMAPOSL command with the provided projection, normalisation, background, and parameter files, then compare the sinogram and normalisation metadata using list_projdata_info. Investigate why differing bed positions trigger the incompatible projection-data warning and objective-function error; done means the reconstruction handles the reported inputs without manually changing bed positions, or the incompatibility is clearly confirmed.