diff --git a/pit.nimble b/pit.nimble
index 4c64392..65ef576 100644
--- a/pit.nimble
+++ b/pit.nimble
@@ -1,6 +1,6 @@
 # Package
 
-version       = "4.23.3"
+version       = "4.23.4"
 author        = "Jonathan Bernard"
 description   = "Personal issue tracker."
 license       = "MIT"
diff --git a/src/pit.nim b/src/pit.nim
index df81a97..2fdba39 100644
--- a/src/pit.nim
+++ b/src/pit.nim
@@ -226,7 +226,7 @@ proc edit(issue: Issue) =
     # Try to parse the newly-edited issue to make sure it was successful.
     let editedIssue = loadIssue(issue.filepath)
     editedIssue.store()
-  except:
+  except CatchableError:
     fatal "updated issue is invalid (ignoring edits): \n\t" &
       getCurrentExceptionMsg()
     issue.store()
@@ -392,7 +392,7 @@ when isMainModule:
       var stateOption = none(IssueState)
 
       try: stateOption = some(parseEnum[IssueState](editRef))
-      except: discard
+      except CatchableError: discard
 
       if stateOption.isSome:
         let state = stateOption.get
@@ -545,8 +545,12 @@ when isMainModule:
 
     if args["contexts"]: listContexts = true
     elif args["<stateOrId>"]:
-      try: statesOption = some(args["<stateOrId>"].mapIt(parseEnum[IssueState]($it)))
-      except: issueIdsOption = some(args["<stateOrId>"].mapIt($it))
+      try:
+        statesOption =
+          some(args["<stateOrId>"].
+          mapIt(parseEnum[IssueState]($it)))
+      except CatchableError:
+        issueIdsOption = some(args["<stateOrId>"].mapIt($it))
 
     # List the known contexts
     if listContexts:
@@ -610,7 +614,22 @@ when isMainModule:
     try: write(propOut, decodeDataUri(issue[$(args["<propName>"])]))
     finally: close(propOut)
 
- except:
+  elif args["show-dupes"]:
+    ctx.loadAllIssues()
+
+    var idsToPaths = newTable[string, var seq[string]]()
+    for (state, issues) in pairs(ctx.issues):
+      for issue in issues:
+        let issueId = $issue.id
+
+        if idsToPaths.hasKey(issueId): idsToPaths[issueId].add(issue.filepath)
+        else: idsToPaths[issueId] = @[issue.filepath]
+
+    for (issueId, issuePaths) in pairs(idsToPaths):
+      if issuePaths.len < 2: continue
+      stdout.writeLine(issueId & ":\p  " & issuePaths.join("\p  ") & "\p\p")
+
+ except CatchableError:
   fatal getCurrentExceptionMsg()
   debug getCurrentException().getStackTrace()
   #raise getCurrentException()
diff --git a/src/pitpkg/cliconstants.nim b/src/pitpkg/cliconstants.nim
index df4b9d1..21355e4 100644
--- a/src/pitpkg/cliconstants.nim
+++ b/src/pitpkg/cliconstants.nim
@@ -1,4 +1,4 @@
-const PIT_VERSION* = "4.23.3"
+const PIT_VERSION* = "4.23.4"
 
 const USAGE* = """Usage:
   pit ( new | add) <summary> [<state>] [options]
@@ -14,6 +14,7 @@ const USAGE* = """Usage:
   pit ( delete | rm ) <id>... [options]
   pit add-binary-property <id> <propName> <propSource> [options]
   pit get-binary-property <id> <propName> <propDest> [options]
+  pit show-dupes
   pit help [options]
 
 Options:
diff --git a/src/pitpkg/private/libpit.nim b/src/pitpkg/private/libpit.nim
index 521ee36..f86ad8c 100644
--- a/src/pitpkg/private/libpit.nim
+++ b/src/pitpkg/private/libpit.nim
@@ -168,7 +168,7 @@ proc parseDate*(d: string): DateTime =
   var errMsg = ""
   for df in DATE_FORMATS:
     try: return d.parse(df)
-    except:
+    except CatchableError:
       errMsg &= "\n\tTried " & df & " with " & d
       continue
   raise newException(ValueError, "Unable to parse input as a date: " & d & errMsg)
@@ -426,7 +426,7 @@ proc loadConfig*(args: Table[string, Value] = initTable[string, Value]()): PitCo
     try:
       cfgFile = open(pitrcFilename, fmWrite)
       cfgFile.write("{\"tasksDir\": \"/path/to/tasks\"}")
-    except: warn "could not write default .pitrc to " & pitrcFilename
+    except CatchableError: warn "could not write default .pitrc to " & pitrcFilename
     finally: close(cfgFile)
 
   debug "loading config from '$#'" % [pitrcFilename]