Which client are you using? This may be a bug present only in Amethyst. The raw note don't have these hashtags. Check it out on nostrudel as example:

https://nostrudel.ninja/#/n/nevent1qqsg464xzetyrp9l20q977s7ecjxsdpz8zh7pyvljqjll78sqcpj5fgpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsyg8muh5qajxmt3peufvz64ue6f0zl69etzc7mav459e6u8y24arqwupsgqqqqqqs68rvah