$ git clone -n https://src.fedoraproject.org/rpms/rapidyaml.git /var/lib/mock/f38-build-side-42-init-devel-945493-28778/root/chroot_tmpdir/scmroot/rapidyaml
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-945493-28778/root/chroot_tmpdir/scmroot/rapidyaml'...
$ git fetch origin 48a56d415042680c0d4464d49eba5531ad85d73f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rapidyaml
 * [new ref]         48a56d415042680c0d4464d49eba5531ad85d73f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48a56d4 Build as C++14 instead of C++11 (for gtest 1.13.0)