Setting a new host removes line comments from existing hosts

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Given a hosts file like:

127.0.0.1        localhost
10.0.0.100     otherhost # some comment

Adding a new configuration with hostile set 127.0.0.1 newhost adds the new host but removes the line comment from the existing entry, leaving

127.0.0.1        localhost
10.0.0.100     otherhost
127.0.0.1        newhost

I would expect this tool to leave existing line comments intact. I have other tooling which depends on their presence.