Not working wildcards in findfile()

I have a question about using wildcards in the path argument to findfile()
function. When running these commands

mkdir -p "test/dir-1/" && touch "test/dir-1/foo"
mkdir -p "test/dir-2/" && touch "test/dir-2/foo"
mkdir -p "test/dir-3/" && touch "test/dir-3/foo"
vim -u NONE -c "echo string(findfile('foo', 'test/*', -1))|call input('press ENTER to exit')|q"
vim -u NONE -c "echo string(findfile('foo', 'test/dir-*', -1))|call input('press ENTER to exit')|q"

I would expect vim to output both times the same output of

['test/dir-1/foo', 'test/dir-2/foo', 'test/dir-3/foo']

but the second vim instance only gives

[]

I don't understand this behavior. What am I doing wrong here?


Markus Braun

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