For Bionic, this bug was fixed in the package modemmanager - 1.10.0-1~ubuntu18.04.2
--------------- modemmanager (1.10.0-1~ubuntu18.04.2) bionic; urgency=medium
* debian/patches/error-propagation-fix.patch: mm-broadband-modem: Fix error propagation in CDMA service status (LP: #1819615, Upstream Issue #119).
For Bionic, this bug was fixed in the package modemmanager - 1.10.0- 1~ubuntu18. 04.2
--------------- 1~ubuntu18. 04.2) bionic; urgency=medium
modemmanager (1.10.0-
* debian/ patches/ error-propagati on-fix. patch: mm-broadband-modem: Fix error
propagation in CDMA service status (LP: #1819615, Upstream Issue #119).