Combined unit of measure in sub-title misses ':'
The combined unit of measure in the sub-title misses the double dot after the virtual UoM name (':').
Example
Note: This issue existed in the previous 'virtual' release: https://de-demo-oecd.siscc.org/vis?fs[0]=Topic%2C0%7CEnvironment%23ENV%23&pg=0&fc=Topic&bp=true&snb=3&vw=tb&df[ds]=ds%3AOECD-staging&df[id]=DSD_AGR%40DF_OUTLOOK_2022_2031&df[ag]=OECD.TAD.ATM&df[vs]=1.0&pd=2022%2C2022&dq=OECD.A.CPC_223.FO_PC..&to[TIME_PERIOD]=false
Edited by Jens Dossé