$ git clone -n https://src.fedoraproject.org/rpms/HdrHistogram_c.git /var/lib/mock/f40-build-800719-143613/root/chroot_tmpdir/scmroot/HdrHistogram_c
Cloning into '/var/lib/mock/f40-build-800719-143613/root/chroot_tmpdir/scmroot/HdrHistogram_c'...
$ git fetch origin 9f22768f61389594933f6a800628f0c06e82dc06:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/HdrHistogram_c
 * [new ref]         9f22768f61389594933f6a800628f0c06e82dc06 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f22768 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild