$ git clone -n https://src.fedoraproject.org/rpms/cmake.git /var/lib/mock/f39-build-1501564-34850/root/chroot_tmpdir/scmroot/cmake
Cloning into '/var/lib/mock/f39-build-1501564-34850/root/chroot_tmpdir/scmroot/cmake'...
$ git fetch origin e4497063d8fc85624ecd7f34ec086ef5b833e0f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cmake
 * [new ref]         e4497063d8fc85624ecd7f34ec086ef5b833e0f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e449706 cmake-3.27.7