If a dictionary entry contains related documents and document links don't have a label, then exporting and importing dictionary entries again is adding http:// to the url again.
Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.
We are currently aware of this issue. Please contact Signavio support and reference SPM-7313
KBA , BPI-SIG-CA-INT-DIC , Dictionary Import / Export for SAP Signavio , How To