$ git clone -n https://src.fedoraproject.org/rpms/golang-github-daviddengcn-algs.git /var/lib/mock/f45-build-11853-435/root/chroot_tmpdir/scmroot/golang-github-daviddengcn-algs
Cloning into '/var/lib/mock/f45-build-11853-435/root/chroot_tmpdir/scmroot/golang-github-daviddengcn-algs'...
$ git fetch origin 165c21caf3e5c8912f8dc9f7f0f974c52846655e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-daviddengcn-algs
 * [new ref]         165c21caf3e5c8912f8dc9f7f0f974c52846655e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 165c21c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild