smbclient.py cannot connect to shares containing spaces

[securitytime]

What the title says. To reproduce:

./smbserver.py -username test -password test "MY SHARE" /home

./smbclient.py test:test@127.0.0.1
Neither of the following commands work:
use "MY SHARE"
use MY\ SHARE
Both commands fail with STATUS_OBJECT_PATH_NOT_FOUND

smbclient works fine on the other hand:
smbclient //127.0.0.1/"MY SHARE" -U test%test

(impacket 0.12.0)