fix(relayer): Don't fast fill any deposit made by a slow depositor (#…

…1899)

The existing logic incorrectly only short-circuits when the fill status
is unfilled. Once this has happened, the fill status changes to
SlowFillRequested and the relayer will proceed to evaluate it as per its
normal fill logic.

src/relayer/Relayer.ts

@@ -628,13 +628,15 @@ export class Relayer {
     }
 
     // If depositor is on the slow deposit list, then send a zero fill to initiate a slow relay and return early.
-    if (slowDepositors?.includes(depositor) && fillStatus === FillStatus.Unfilled) {
-      this.logger.debug({
-        at: "Relayer::evaluateFill",
-        message: "Initiating slow fill for grey listed depositor",
-        depositor,
-      });
-      this.requestSlowFill(deposit);
+    if (slowDepositors?.includes(depositor)) {
+      if (fillStatus === FillStatus.Unfilled) {
+        this.logger.debug({
+          at: "Relayer::evaluateFill",
+          message: "Initiating slow fill for grey listed depositor",
+          depositor,
+        });
+        this.requestSlowFill(deposit);
+      }
       return;
     }