I don't know what happened to the fix that was committed a year ago, but the initial bug is still present in hplip 3.19.11 as downloaded and installed today. I found the following entry in models.dat:
[hp_color_laserjet_mfp_m278-m281]
and had to change it to
[hp_colorlaserjet_mfp_m278-m281]
manually so that my printer could be detected and setup by hp-setup.
I don't know what happened to the fix that was committed a year ago, but the initial bug is still present in hplip 3.19.11 as downloaded and installed today. I found the following entry in models.dat:
[hp_color_ laserjet_ mfp_m278- m281]
and had to change it to
[hp_colorlaserj et_mfp_ m278-m281]
manually so that my printer could be detected and setup by hp-setup.