fixed a nil exception when trying to unignore nothing

Author git <vivec@telvanni.eu>
Author date 2018-02-13 18:35:03
Author local date 2018-02-13 19:35:03 +0100
Committer git <vivec@telvanni.eu>
Committer date 2018-02-13 18:35:03
Committer local date 2018-02-13 19:35:03 +0100
Commit 40e05b1250081ae2d19687b3cd8fd018c938b254
Tree c82873992c57ab604341fa75167a7dee373cc1f8
Parent 4e5984fd447968f55c56d86412de66622aff062f
fixed a nil exception when trying to unignore nothing