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-rw-r--r--mysys/charset.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mysys/charset.c b/mysys/charset.c
index ad3eb78ae0e..3c134dc388e 100644
--- a/mysys/charset.c
+++ b/mysys/charset.c
@@ -545,6 +545,7 @@ static void init_available_charsets(void)
{
if (*cs)
{
+ DBUG_ASSERT(cs[0]->mbmaxlen <= MY_CS_MBMAXLEN);
if (cs[0]->ctype)
if (init_state_maps(*cs))
*cs= NULL;