$ git clone -n https://src.fedoraproject.org/rpms/elementary-notifications.git /var/lib/mock/f42-build-side-1-3537094-46559/root/chroot_tmpdir/scmroot/elementary-notifications
Cloning into '/var/lib/mock/f42-build-side-1-3537094-46559/root/chroot_tmpdir/scmroot/elementary-notifications'...
$ git fetch origin 39d749f1bb20af4a13e6030ea02a27aea837f0b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elementary-notifications
 * [new ref]         39d749f1bb20af4a13e6030ea02a27aea837f0b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39d749f Update to version 8.1.0; Fixes RHBZ#2367856