$ git clone -n https://src.fedoraproject.org/rpms/gnome-app-list.git /var/lib/mock/f42-build-side-1-3502153-45977/root/chroot_tmpdir/scmroot/gnome-app-list
Cloning into '/var/lib/mock/f42-build-side-1-3502153-45977/root/chroot_tmpdir/scmroot/gnome-app-list'...
$ git fetch origin 0198027d8f5e85b64e99e56be674a0caef373656:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-app-list
 * [new ref]         0198027d8f5e85b64e99e56be674a0caef373656 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0198027 Update to 3.0