#19 required annotationSet tag not written in aECG HL7 output stream

[MtwStark]

Hello everybody,
I think I have found that there is a problem with aECG format.

If you try to load an ECG (in any format) and to save it in aECG format, the tag "annotationSet" (required) is not written to output file if there are no annotations found

example:
from a valid aECG xml like <annotationSet></annotationSet> toolkit will not write <annotationSet></annotationSet> to output stream.

bye
MtwStark