fix: with_reservation takes flag

Author: prestwich

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "signet-libmdbx"
 description = "Idiomatic and safe MDBX wrapper"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2024"
 rust-version = "1.92"
 license = "MIT OR Apache-2.0"

src/tx/transaction.rs

@@ -456,9 +456,10 @@ impl Transaction<RW> {
         dbi: ffi::MDBX_dbi,
         key: impl AsRef<[u8]>,
         len: usize,
+        flags: WriteFlags,
         f: impl FnOnce(&mut [u8]),
     ) -> MdbxResult<()> {
-        let buf = unsafe { self.reserve(dbi, key, len, WriteFlags::empty())? };
+        let buf = unsafe { self.reserve(dbi, key, len, flags)? };
         f(buf);
         Ok(())
     }