sampling : null grammar field after reset (#3885)

diff --git a/common/sampling.cpp b/common/sampling.cpp
index 673d67a6d5380e1cfe6bcb23fcbfb56d0d002cb7..1317024c2c11cffd9d05a8d8347b86f9064f3981 100644 (file)
--- a/common/sampling.cpp
+++ b/common/sampling.cpp
@@ -39,6 +39,7 @@ void llama_sampling_free(struct llama_sampling_context * ctx) {
 void llama_sampling_reset(llama_sampling_context * ctx) {
     if (ctx->grammar != NULL) {
         llama_grammar_free(ctx->grammar);
+        ctx->grammar = NULL;
     }
 
     if (!ctx->parsed_grammar.rules.empty()) {