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Add check on perigee position in GaussianSumFitter.cxx (ATLASRECTS-7966)

Thomas Strebler requested to merge tstreble-24.0-patch-70514 into 24.0

Pathological GSF tracks with perigee z position well outside the detector have been causing issues with the InDetTestPixelLayerTool in ATLASRECTS-7966. This adds a safety check to avoid running trying to run the propagator for those.

Checked to solve all the problematic cases reported in ATLASRECTS-7966

Can be considered in addition to !70577 (merged), good to have both belts and suspenders

FYI @christos

The impact is likely too small to be seen in the CI tests, so adding manually frozen-tier0-violating

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