data: restore missing trigger in The Cistern (#1067)

Added a trigger to room 56 so that it matches its flipped room (72) and
therefore prevents a softlock.

Resolves #1066.

CHANGELOG.md

@@ -18,6 +18,7 @@
 - fixed braid being disabled by default unless the player runs the config tool first (#1043)
 - fixed various bugs with falling movable blocks (#723)
 - fixed the incorrect positioning of door 12 in Tomb of Tihocan (#1063)
+- fixed a potential softlock in The Cistern by restoring a missing trigger in room 56 (#1066)
 - improved frame scheduling to use less CPU (#985)
 - improved and expanded gameflow documentation (#1018)
 - rotated the Scion in Tomb of Qualopec to face the the main gate and Qualopec (#1007)

README.md

@@ -293,6 +293,7 @@ Not all options are turned on by default. Refer to `TR1X_ConfigTool.exe` for det
 - fixed dead centaurs exploding again after saving and reloading
 - fixed the following floor data issues:
     - **St. Francis' Folly**: moved the music trigger for track 3 in room 4 behind the Neptune door, and restored track 15 to play after using the 4 keys
+    - **The Cistern**: missing trigger in room 56 which could result in a softlock
     - **Tomb of Tihocan**: missing trigger in room 62 for enemy 34
     - **City of Khamoon**: incorrect trapdoor trigger types in rooms 31 and 34
     - **Obelisk of Khamoon**: missing switch trigger type in room 66

bin/cfg/TR1X_gameflow.json5

@@ -216,6 +216,7 @@
             "type": "normal",
             "music": 58,
             "injections": [
+                "data/cistern_fd.bin",
                 "data/cistern_itemrots.bin",
                 "data/cistern_textures.bin",
             ],