Object queries (where({...})) cannot reuse virtual indexes if two or more props are specified

[dfahlander]

A object query such as:

await db.chaps.where({name: "Mambo", number: 5}).toArray();

returns empty array if there's a compound index covering 3 props with these 2 as the leading ones.

Schema has a compound index [name+number+shoeSize] that should be able to reuse parts of but the bug is that the queries only works if the object query either contains a single property (name) or all properties (name, number, shoeSize) but not when containing partials.

db.version(x).stores({
    chaps: "++id,[name+number+shoeSize]",
});

Also, instead of failing, it returns empty result.