Consecutive sync record CREATE, UPDATE won't be applied on receiving end

[darkdh]

This is a regression of brave-syncer(brave/brave-core#2010)
If a device receive a CREATE record and also UPDATE to this record without modifying the bookmark, the UPDATE won't be applied.

STR:

1. Sync device A and device B
2. Create folder F1 and bookmark B1 on toolbar of device A
3. Wait for them to show up on device B
4. Open chrome://inspect/#extensions on device B and inspect Brave Sync
5. Move B1 into F1 on device A
6. When device B receives resolved records, nothing happens on toolbar

Note: This blocks the migration of #5158

[LaurenWags]

Verified passed with

Brave	0.70.112 Chromium: 77.0.3865.90 (Official Build) beta (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	macOS Version 10.13.6 (Build 17G5019)

• Verified test plan from Fix server order out of sync between sender/receiver brave-core#3602
• Verified STR from description

Verification passed on

Brave	0.70.112 Chromium: 77.0.3865.90 (Official Build) beta (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	Ubuntu 18.04 LTS

• Verified test plan from Fix server order out of sync between sender/receiver brave-core#3602
• Verified STR from description

Verification passed on

Brave	0.70.116 Chromium: 77.0.3865.90 (Official Build) beta (64-bit)
Revision	58c425ba843df2918d9d4b409331972646c393dd-refs/branch-heads/3865@{#830}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified test plan from Fix server order out of sync between sender/receiver brave-core#3602
• Verified STR from description