fix: Search query backslash replacement only touched first instance

closes #2111

server/models/Document.js

@@ -248,7 +248,7 @@ type SearchOptions = {
 function escape(query: string): string {
   // replace "\" with escaped "\\" because sequelize.escape doesn't do it
   // https://github.com/sequelize/sequelize/issues/2950
-  return sequelize.escape(query).replace("\\", "\\\\");
+  return sequelize.escape(query).replace(/\\/g, "\\\\");
 }
 
 Document.searchForTeam = async (

server/models/Document.test.js

@@ -197,6 +197,12 @@ describe("#searchForTeam", () => {
     expect(results.length).toBe(0);
   });
 
+  test("should handle backslashes in search term", async () => {
+    const team = await buildTeam();
+    const { results } = await Document.searchForTeam(team, "\\\\");
+    expect(results.length).toBe(0);
+  });
+
   test("should return the total count of search results", async () => {
     const team = await buildTeam();
     const collection = await buildCollection({ teamId: team.id });