Tempo ramps - add legacy session comment.

diff --git a/libs/ardour/tempo.cc b/libs/ardour/tempo.cc
index 5afca564dc8ff59e5be4273a846a31ba07cc65d2..d198963ec0cc327ed28e3df656905fdb90b18ce4 100644 (file)
--- a/libs/ardour/tempo.cc
+++ b/libs/ardour/tempo.cc
@@ -2849,7 +2849,7 @@ TempoMap::set_state (const XMLNode& node, int /*version*/)
                        TempoSection* t;
                        MeterSection* prev_m = 0;
                        TempoSection* prev_t = 0;
-
+                       /* if one is < 0.0, they all are. this is a legacy session */
                        if ((m = dynamic_cast<MeterSection*>(*i)) != 0 && m->pulse() < 0.0) {
                                if (!m->movable()) {
                                        pair<double, BBT_Time> bbt = make_pair (0.0, BBT_Time (1, 1, 0));