The Proofreadpage version of the 1.20-wmf1 release break the fromsection and tosection parameters of the "pages" tag.
It has been reported on en : https://en.wikisource.org/wiki/Wikisource:Scriptorium#Issues%20with%20upgrade%20to%201.20wmf
and on fr : https://fr.wikisource.org/wiki/Wikisource:Scriptorium/Avril_2012#Nouveau_syst.C3.A8me_de_d.C3.A9ploiement_des_mises_.C3.A0_jour_.2B_am.C3.A9lioration_de_ProofreadPage
Here is a patch that solve the bug : https://gerrit.wikimedia.org/r/#change,5317
Version: unspecified
Severity: critical