If in keyfetch_done the compute_tag fails (because for example the algorithm is not supported), don't crash, but instead ignore the key. (cherry picked from commit b1d5411569ae10830b63f07560091193646cc739)
If in keyfetch_done the compute_tag fails (because for example the algorithm is not supported), don't crash, but instead ignore the key. (cherry picked from commit b1d5411569ae10830b63f07560091193646cc739)