fix(SlippageIssuanceModule): Fix issuance & redemption flows to not update position units (#254)

* Reapply all fixes by Brain; Skip package.json changes

* Fix SIM

* Fix PerpV2LeverageModule<>SIM integration tests

* Fix BTM <> SIM integration tests

* Add tests to ensure base token position unit does not update on issuance and redemption

* Bump package to 0.10.3-basis.0 and publish

* Override issue and redeem; Add tests

* Reset package version to 0.10.3

Author: Sachin

contracts/protocol/modules/v1/SlippageIssuanceModule.sol

@@ -42,6 +42,20 @@ contract SlippageIssuanceModule is DebtIssuanceModule {
 
     /* ============ External Functions ============ */
 
+    /**
+     * @dev Reverts upon calling. Call `issueWithSlippage` instead.
+     */
+    function issue(ISetToken /*_setToken*/, uint256 /*_quantity*/, address /*_to*/) external override(DebtIssuanceModule) {
+        revert("Call issueWithSlippage instead");
+    }
+
+    /**
+     * @dev Reverts upon calling. Call `redeemWithSlippage` instead.
+     */
+    function redeem(ISetToken /*_setToken*/, uint256 /*_quantity*/, address /*_to*/) external override(DebtIssuanceModule) {
+        revert("Call redeemWithSlippage instead");
+    }
+
     /**
      * Deposits components to the SetToken, replicates any external module component positions and mints
      * the SetToken. If the token has a debt position all collateral will be transferred in first then debt
@@ -76,8 +90,6 @@ contract SlippageIssuanceModule is DebtIssuanceModule {
 
         address hookContract = _callManagerPreIssueHooks(_setToken, _setQuantity, msg.sender, _to);
 
-        _callModulePreIssueHooks(_setToken, _setQuantity);
-
         bool isIssue = true;
 
         (
@@ -86,6 +98,8 @@ contract SlippageIssuanceModule is DebtIssuanceModule {
             uint256 protocolFee
         ) = calculateTotalFees(_setToken, _setQuantity, isIssue);
 
+        _callModulePreIssueHooks(_setToken, quantityWithFees);
+
         // Scoping logic to avoid stack too deep errors
         {
             (
@@ -148,11 +162,6 @@ contract SlippageIssuanceModule is DebtIssuanceModule {
     {
         _validateInputs(_setQuantity, _checkedComponents, _minTokenAmountsOut);
 
-        _callModulePreRedeemHooks(_setToken, _setQuantity);
-
-        // Place burn after pre-redeem hooks because burning tokens may lead to false accounting of synced positions
-        _setToken.burn(msg.sender, _setQuantity);
-
         bool isIssue = false;
 
         (
@@ -161,6 +170,11 @@ contract SlippageIssuanceModule is DebtIssuanceModule {
             uint256 protocolFee
         ) = calculateTotalFees(_setToken, _setQuantity, isIssue);
 
+        _callModulePreRedeemHooks(_setToken, quantityNetFees);
+
+        // Place burn after pre-redeem hooks because burning tokens may lead to false accounting of synced positions
+        _setToken.burn(msg.sender, _setQuantity);
+
         (
             address[] memory components,
             uint256[] memory equityUnits,