Sorry for bothering you, but is your username based off of Beelzebul from Genshin Impact?
Hi, not a site dev, but I can guess what's happening. When you intro kurumu or くるむ, it searchs by default if there's a kanji representation, then converts it into kanji and does the search which takes you to the word with most meanings (tsutsumu). I don't know if the page's code is open source, but if you can get to someone who can check it, tell him that.
Correction: I meant that after converting it into kanji, since both kanjis reads the same then you get redirected to the one with most meanings, tsutsumu, and below that kurumu.
Also not a site dev but I don't think it's that complicated. If you just look at JMdictDB, there was a reference from くるむ entry to the つつむ entry until a few days ago https://www.edrdg.org/jmwsgi/entr.py?svc=jmdict&sid=&e=2291274 See the part where it says that the xref to 1584060 (つつむ) has been deleted on 2024-02-06. So that's probably the reason why it does show up when searching for くるむ, and it also demonstrates how effective it is to just make changes at JMdict by yourself. You don't need to ask people on another site's forum to do it ;)
@bay4bay, almost! There was a くるむ reading on the つつむ entry at point, and this version of Jisho doesn't remove data from entries, so くるむ is still in the search index. The next version fixes this quite major flaw.
くるむ takes you to the entry for つつむ
If you look up くるむ, it takes you to the entry for 包む (つつむ), there is nothing in the entry that says くるむ is another form. 包む (くるむ) appears as another entry below.