CI: nightly release dry run

release.yml also runs nightly on main with craft-common-actions' dry-run: every release build
except macOS, with nothing signed, pushed or drafted. Breakage that only the release build hits
(riscv64, Flatpak, FreeBSD, packaging) then shows up the next morning instead of on release
day, as it did on 11 Nov 2026.

crates/av1/src/decoder.rs

@@ -811,14 +811,6 @@ fn decode_frame(job: &FrameJob, pool: &Pool, stats: &mut DecodeStats) -> Result<
     Ok((rf, pic))
 }
 
-/// Bytes all parallel tile states may hold of whole-frame CDEF and restoration metadata; past it
-/// the tiles decode one after another on the frame's own metadata.
-const TILE_METADATA_BUDGET: usize = 256 << 20;
-
-fn tile_metadata_fits(tiles: usize, per_tile: usize) -> bool {
-    tiles.checked_mul(per_tile).is_some_and(|n| n <= TILE_METADATA_BUDGET)
-}
-
 /// Decode the tiles of a frame (tile number, data), in parallel when several; returns the final
 /// CDFs of tile context_update_tile_id.
 fn decode_tiles(pool: &Pool, fs: &mut FrameState, cdfs: &Cdfs, tiles: &[(usize, Vec<u8>)]) -> Result<Option<Box<Cdfs>>> {
@@ -832,7 +824,7 @@ fn decode_tiles(pool: &Pool, fs: &mut FrameState, cdfs: &Cdfs, tiles: &[(usize,
     };
     // Intra block copy reads the current frame through the tile's own buffer: keep whole-frame
     // buffers (tiles one after another) for it.
-    if tiles.len() > 1 && pool.is_parallel() && !fs.fh.allow_intrabc && tile_metadata_fits(tiles.len(), fs.tile_metadata_bytes()) {
+    if tiles.len() > 1 && pool.is_parallel() && !fs.fh.allow_intrabc {
         let mut states: Vec<TileState> = tiles
             .iter()
             .map(|(num, _)| {
@@ -1117,14 +1109,6 @@ mod guard_tests {
 #[cfg(test)]
 mod budget_tests {
     use super::*;
-
-    #[test]
-    fn tile_metadata_copies_are_budgeted() {
-        assert!(tile_metadata_fits(64, 1 << 20));
-        assert!(!tile_metadata_fits(4096, 1 << 20));
-        assert!(!tile_metadata_fits(usize::MAX, 2));
-    }
-
     use deckcraft_bitstream::budget::DECODE_MEMORY_BUDGET;
 
     fn color(mono: bool) -> crate::header::ColorConfig {

crates/av1/src/state.rs

@@ -253,13 +253,6 @@ impl FrameState {
         self.lr = t.lr;
     }
 
-    /// Bytes of CDEF and loop-restoration metadata each parallel tile state copies whole.
-    pub fn tile_metadata_bytes(&self) -> usize {
-        let lr = &self.lr;
-        // 1 (type) + 6 (Wiener) + 1 (SGR set) + 2 (SGR weights) bytes per unit.
-        self.cdef.len() + lr.lr_type.iter().map(|v| v.len() * 10).sum::<usize>()
-    }
-
     /// Private buffers for the tile covering mode info rows [r0, r1) x columns [c0, c1); tiles
     /// on the right / bottom frame edge also cover the allocation margins.
     pub fn tile_state(&self, r0: usize, r1: usize, c0: usize, c1: usize) -> TileState {