Cisco IOS temperature discovery: created empty items

[maxxer]

I just upgraded the Cisco IOS template using git from release/6.0 branch, for a bunch of routers it started discovering temperature items for empty {#SNMPVALUE}.

Like in the screenshot below, the item description (before the semicolon) is empty, and eventually the item value is empty as well.

This is happening with these IOS versions:

1. Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.4(3)M3, RELEASE SOFTWARE (fc2)
2. Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.5(3)M5, RELEASE SOFTWARE (fc1)
3. Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.2(4)M4, RELEASE SOFTWARE (fc2)

It does not happen for:

1. Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.2(4)M5, RELEASE SOFTWARE (fc2)
2. Cisco IOS Software [Bengaluru], ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 17.6.3a, RELEASE SOFTWARE (fc1)

Can this be considered a bug? Should I open a new issue?
In the meantime, how can I avoid those item being discovered?

Thanks