<ref>...</ref> in the German Wikipedia is shown as empty space after, usually, the 2nd occurrence in an Article sometimes.
See e.g.
http://de.wikipedia.org/w/index.php?title=K%C3%B6lsch_(Sprache)&stable=0#Herkunft_und_Entstehung_des_K.C3.B6lschen
towards the end of the section,
http://de.wikipedia.org/w/index.php?title=K%C3%B6lsch_(Sprache)&stable=0#Herkunft_und_Entstehung_des_K.C3.B6lschen
This happens a bit randomly. If it happens, the error persists for a while, likely due to page caching. I tried a cache purge as a quick remedy, but it did not make a change.
Version: unspecified
Severity: major