colon (':') in the RA link encoded twice

On the Status page there is a column with resource agent links. One such link is like this (got with "Copy Link Location" in Firefox):
https://localhost:7630/cib/live/agents/ocf%253Aheartbeat%253ADummy
Otherwise it looks normal on the page: `ocf:heartbeat:Dummy`
In Firefox, hovering over the link shows in the lower left corner:
https://localhost:7630/cib/live/agents/ocf%3Aheartbeat%3ADummy
Apparently, the ':' is encoded into "%3A" which is then further encoded as "%253A", i.e. that '%' gets encoded too.
The version is:
hawk2-2.1.0+git.1562924574.34a87ad7-236.10.x86_64