Previously, the plugin would blow away existing TXT records for the same DNS name when adding a TXT record. This means that issuing a certificate for both a base domain and its wildcard could not succeed.
Thanks to alexzorin for catching that. Refer to 5 for details.
1.0.1
Refining package details
1.0.0
Available on https://pypi.org/project/certbot-plugin-gandi