quadkey bug fix

package.json

@@ -125,4 +125,4 @@
     "access": "public"
   },
   "resolutions_comment": "We set the above resolutions to make sure we pull in the latest versions of these packages even if some sub packages request earlier versions"
-}
+}

packages/sdk-utils/packages/quadkey/src/Quadkey.ts

@@ -55,6 +55,9 @@ export class Quadkey {
   }
 
   get base4Hash() {
+    if (this.id === 0n && this.zoom === 0) {
+      return ''
+    }
     return this.id.toString(4).padStart(this.zoom, '0')
   }
 

packages/sdk-utils/packages/quadkey/src/spec/Quadkey.spec.ts

@@ -10,4 +10,16 @@ describe('Quadkey', () => {
     expect(center?.lat).toBe(48.378_236)
     expect(center?.lng).toBe(-146.25)
   })
+  test('Zero Children', () => {
+    const qk = Quadkey.Zero
+    expect(qk.base16String).toBe('00000000000000000000000000000000000000000000000000000000000000')
+    expect(qk.zoom).toBe(0)
+    expect(qk.base4Hash).toBe('')
+    const children = qk?.children
+    expect(children?.length).toBe(4)
+    expect(children?.[0].base4Hash).toBe('0')
+    expect(children?.[1].base4Hash).toBe('1')
+    expect(children?.[2].base4Hash).toBe('2')
+    expect(children?.[3].base4Hash).toBe('3')
+  })
 })