Spotlight crashes when entering a specific query string

Question

I have a folder on my mac which I access occasionally, let's say its name is FolderABC. I usually hit CMD + Space to bring up Spotlight, then type the name into it and it will be the first result. Recently, Spotlight crashes instead, as soon as I type Folder and before typing any more letters. If I type any other query, it works normally. I can tell it crashes since the Loupe icon briefly disappears from the menu bar (Spotlight restarts immediately) and looking in system.log in Console shows this, whenever the problem occurs:

Oct  4 18:27:21 my-macbook-pro com.apple.xpc.launchd[1] (com.apple.Spotlight[16126]): Service exited due to signal: Illegal instruction: 4 sent by exc handler[0]

I'm currently having Spotlight rebuild its index, but what else could I try? Specifically, are there any debugging tools available to get a more detailed stack trace of what's causing the app to crash?

My OS version is 10.12.6

Answer 1

Old answer:

My first solution was simply reindexing all folders by running

sudo mdutil -E /

This did not help. I then renamed the folder in question, reindexed again, named it back and reindexed another time. The problem has now disappeared.

Update:

The bug seems to have been introduced with the update to Safari 12. As discussed in the apple product forums, a workaround is to disable Bookmarks & History in the Spotlight system preferences.