$ git clone -n https://src.fedoraproject.org/rpms/libdca.git /var/lib/mock/f45-build-16036-481/root/chroot_tmpdir/scmroot/libdca
Cloning into '/var/lib/mock/f45-build-16036-481/root/chroot_tmpdir/scmroot/libdca'...
$ git fetch origin fba6e603d0a33f9fda2d7d1dc267ecbe5a4bc43a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libdca
 * [new ref]         fba6e603d0a33f9fda2d7d1dc267ecbe5a4bc43a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fba6e60 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild