Make registration carry flow all the way through

app/controllers/api/v1/Password.controller.js

@@ -90,6 +90,10 @@ class PasswordController extends Controller {
         await this.activity.password_reset({ req, ip: req.ip })
         if ( req.trap.has_trap() && req.trap.get_trap() === 'password_reset' ) await req.trap.end()
 
+        if ( req.session.registrant_flow ) {
+            await req.trap.begin('registrant_flow', { session_only: true })
+        }
+
         // invalidate existing tokens and other logins
         await req.user.logout(req)
         await req.user.kickout()

app/controllers/auth/Forms.controller.js

@@ -11,11 +11,21 @@ class Forms extends FormController {
     }
 
     async registration_provider_get(req, res, next) {
+        if ( req.session.auth.flow ) {
+            req.session.registrant_flow = req.session.auth.flow
+        }
+
         return res.page('auth:register', {
             ...this.Vue.data({})
         })
     }
 
+    async finish_registration(req, res, next) {
+        if ( req.trap.has_trap() && req.trap.get_trap() === 'registrant_flow' ) await req.trap.end()
+        const dest = req.session.registrant_flow || '/dash/profile'
+        return res.redirect(dest)
+    }
+
     async login_provider_get(req, res, next) {
         const Setting = this.models.get('Setting')