i am having to reload the mod to get it to work after restarting the server 

For me it does not work at all actually. with the following error after the latest update:

Failed to call hook 'OnHammerHit' on plugin 'BaseRepair v1.0.22' (NullReferenceException: )
  at (wrapper managed-to-native) UnityEngine.MonoBehaviour.IsObjectMonoBehaviour(UnityEngine.Object)
  at UnityEngine.MonoBehaviour.StartCoroutine (System.Collections.IEnumerator routine) [0x00014] in <0b31faaf1c50461d95c83ac166a20393>:0

  at Oxide.Plugins.BaseRepair.OnHammerHit (BasePlayer player, HitInfo info) [0x001a4] in <1539badab1a74cd3a7b3f1e5e5cc0bc2>:0

  at Oxide.Plugins.BaseRepair.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x000e5] in <1539badab1a74cd3a7b3f1e5e5cc0bc2>:0

  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <09575a60985045248bcb43b20faeeb99>:0

  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <bae5f1223fce49c493b01571c99dce02>:0

  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <bae5f1223fce49c493b01571c99dce02>:0

This was fixed in version 1.0.23.