fix: run task command on files deep copy

lib/makeCmdTasks.js

@@ -39,11 +39,12 @@ export const makeCmdTasks = async ({ commands, cwd, files, gitDir, renderer, she
   debugLog('Creating listr tasks for commands %o', commands)
   const commandArray = Array.isArray(commands) ? commands : [commands]
   const cmdTasks = []
+  const filesCopy = new Array(files)
 
   for (const cmd of commandArray) {
     // command function may return array of commands that already include `stagedFiles`
     const isFn = typeof cmd === 'function'
-    const resolved = isFn ? await cmd(files) : cmd
+    const resolved = isFn ? await cmd(filesCopy) : cmd
 
     const resolvedArray = Array.isArray(resolved) ? resolved : [resolved] // Wrap non-array command as array
 
@@ -62,7 +63,7 @@ export const makeCmdTasks = async ({ commands, cwd, files, gitDir, renderer, she
 
       // Truncate title to single line based on renderer
       const title = cliTruncate(command, getTitleLength(renderer))
-      const task = resolveTaskFn({ command, cwd, files, gitDir, isFn, shell, verbose })
+      const task = resolveTaskFn({ command, cwd, filesCopy, gitDir, isFn, shell, verbose })
       cmdTasks.push({ title, command, task })
     }
   }