Comment # 3 on bug 1082090 from Dominique Leuenberger

$ mkdir /tmp/bitlbee.leap15
$ sudo zypper --root /tmp/bitlbee.leap15 ar
http://download.opensuse.org/distribution/leap/15.0/repo/oss leap15
$ sudo zypper --root /tmp/bitlbee.leap15 in bitlbee

=> The following application is going to be installed:
  NetworkManager

Overall download size: 199.1 MiB. Already cached: 0 B. After the operation,
additional 712.2 MiB will be used.

Thus, definitively not fixed in Leap 15

(checked also Tumbleweed, the result is Overall download size: 214.0 MiB.
Already cached: 0 B. After the operation, additional 756.8 MiB will be used.)