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--- a
+++ b/packaging/rpm/recoll-simpleregexp-vector-provision.patch
@@ -0,0 +1,13 @@
+diff --git a/src/utils/smallut.cpp b/src/utils/smallut.cpp
+index d2218c94..48acdc9f 100644
+--- a/src/utils/smallut.cpp
++++ b/src/utils/smallut.cpp
+@@ -1281,7 +1281,7 @@ public:
+         } else {
+             ok = false;
+         }
+-        matches.reserve(nmatch+1);
++        matches.resize(nmatch+1);
+     }
+     ~Internal() {
+         regfree(&expr);