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-rw-r--r--odb/session.ixx3
1 files changed, 2 insertions, 1 deletions
diff --git a/odb/session.ixx b/odb/session.ixx
index 50a2ca1..4748cae 100644
--- a/odb/session.ixx
+++ b/odb/session.ixx
@@ -12,6 +12,7 @@ namespace odb
{
// @@ Empty maps are not cleaned up by this version of erase.
//
- p.map_->erase (p.pos_);
+ if (p.map_ != 0)
+ p.map_->erase (p.pos_);
}
}