MCRFilenodeServlet needs to "correct" derivate ID

Description

In Rostock we have change the length of number part of the MyCoRe IDs.
Therefore the MCRFilenodeServlet should normalize the derivate ID.

This would also enable shorter FileLinks like:
https://publikationsserver.tu-braunschweig.de/servlets/MCRFileNodeServlet/dbbs_derivate_028771/Elsner-Hartmann-Digitale_Bibliothek_Braunschweig.pdf
or
http://rosdok.uni-rostock.de/file/rosdok_disshab_858/rosdok_derivate_4912/Dissertation_Schick_2012.pdf

Environment

None

Assignee

Robert Stephan

Reporter

Robert Stephan

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Components

Fix versions

Affects versions

Priority

Medium
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