$ git clone -n https://src.fedoraproject.org/flatpaks/katomic /var/tmp/koji/tasks/7424/131827424/katomic
Cloning into '/var/tmp/koji/tasks/7424/131827424/katomic'...
$ git fetch origin 35d6ac327f224c2c6094182a22770f71aad173ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/flatpaks/katomic
 * [new ref]         35d6ac327f224c2c6094182a22770f71aad173ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35d6ac3 F42