adding test for updated series shorter than previous one catching bug occuring with imf update in wrong order
adding test for updated series shorter than previous one
catching bug occuring with imf update in wrong order

Widukind/dlstats,MichelJuillard/dlstats,mmalter/dlstats,MichelJuillard/dlstats,Widukind/dlstats,MichelJuillard/dlstats,mmalter/dlstats,mmalter/dlstats