$ git clone -n https://src.fedoraproject.org/rpms/dcmtk.git /var/lib/mock/f31-build-58373-28442/root/chroot_tmpdir/scmroot/dcmtk
Cloning into '/var/lib/mock/f31-build-58373-28442/root/chroot_tmpdir/scmroot/dcmtk'...
$ git reset --hard b41a2e7982af4ffdfb4a078f03ef8d83ae1e6df4
HEAD is now at b41a2e7 Release 3.6.4