$ git clone -n https://src.fedoraproject.org/rpms/network-manager-applet.git /var/lib/mock/f45-build-19657-553/root/chroot_tmpdir/scmroot/network-manager-applet
Cloning into '/var/lib/mock/f45-build-19657-553/root/chroot_tmpdir/scmroot/network-manager-applet'...
$ git fetch origin b85882f0d31a650637bf85156231ad86bd63c42d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/network-manager-applet
 * [new ref]         b85882f0d31a650637bf85156231ad86bd63c42d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b85882f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild