Terminal Colour stripped when filtering with grep and host uses custom options

[eyehearttech]

I have found that when I use grep to filter the storm list output, by bash terminal looses the previous terminal colour when it encounters a host entry that uses custom options (for example specifying deprecated ciphers for legacy equipment) and falls back to grey colour.

Is this an minor issue with storm ssh or just a known bug with bash/grep (likely)?

The command I use which is triggering this is:
storm list | grep HOST

An example of a .ssh/config entry that causes this when I use the following:

Host HOST
    hostname hostname
    user admin
    port 22
    ciphers aes256-cbc

My system is fully up-to-date, however I am running Ubuntu 19.04 and the below list is my venv (pytools) pip3 module list used for storm ssh:

(pytools) host:~$ pip3 list
Package       Version
------------- ---------
asn1crypto    0.24.0
bcrypt        3.1.7
certifi       2019.9.11
cffi          1.12.3
chardet       3.0.4
Click         7.0
cryptography  2.7
Flask         1.1.1
idna          2.8
itsdangerous  1.1.0
Jinja2        2.10.1
MarkupSafe    1.1.1
netaddr       0.7.19
paramiko      2.6.0
passlib       1.7.1
pip           18.1
pkg-resources 0.0.0
pycparser     2.19
PyNaCl        1.3.0
pynetbox      4.0.7
requests      2.22.0
setuptools    40.8.0
six           1.12.0
storm         0.21
stormssh      0.7.0
termcolor     1.1.0
urllib3       1.25.5
Werkzeug      0.16.0
wheel         0.33.6