$ git clone -n https://src.fedoraproject.org/rpms/hydrapaper.git /var/lib/mock/f40-build-2066972-49285/root/chroot_tmpdir/scmroot/hydrapaper
Cloning into '/var/lib/mock/f40-build-2066972-49285/root/chroot_tmpdir/scmroot/hydrapaper'...
$ git fetch origin 0dbbd64656b26cea981c53a7895da34286357032:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hydrapaper
 * [new ref]         0dbbd64656b26cea981c53a7895da34286357032 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0dbbd64 build: Update to 3.3.2 (rh#2240370)