Input buildinfo: https://buildinfos.debian.net/buildinfo-pool/g/gpaw/gpaw_21.6.0-1_amd64.buildinfo
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Get source package info: gpaw=21.6.0-1
Source URL: http://snapshot.notset.fr/mr/package/gpaw/21.6.0-1/srcfiles?fileinfo=1
No source info found for gpaw-21.6.0-1