Fix unified diff bug caused by no-unnecessary-split-diff-view (#6063)

.github/ISSUE_TEMPLATE/1_bug_report.yml

@@ -26,8 +26,8 @@ body:
  required: true
  - type: textarea
  attributes:
- label: How to replicate the issue
- description: Include the steps to reproduce and A REAL URL where the bug appears. If it happens on a private repo, find an equivalent public URL, even if it doesn't happen there.
+ label: How to replicate the issue + URL
+ description: ‼️‼️‼️ Every bug report MUST include A REAL URL where the bug appears. If it happens on a private repo, find an equivalent public URL, even if it doesn't happen there.
  validations:
  required: true
  - type: input

source/features/no-unnecessary-split-diff-view.css

@@ -1,13 +1,13 @@
 /* The selector looks for diff tables WITHOUT changes on the left XOR on the right */
 /* Instead of duplicating this selector for each rule, we set a variable and pick it up where needed */
-.rgh-no-unnecessary-split-diff-view .js-diff-table:not(
+.rgh-no-unnecessary-split-diff-view .js-diff-table:has([data-split-side]):not(
 :has([data-split-side='left']:is(.blob-code-addition, .blob-code-deletion))
 ) {
  --rgh-only-additions: none;
  table-layout: auto !important;
 }
 
-.rgh-no-unnecessary-split-diff-view .js-diff-table:not(
+.rgh-no-unnecessary-split-diff-view .js-diff-table:has([data-split-side]):not(
 :has([data-split-side='right']:is(.blob-code-addition, .blob-code-deletion))
 ) {
  --rgh-only-deletions: none;
@@ -24,7 +24,7 @@
  display: var(--rgh-only-deletions, table-cell) !important;
 }
 
-/* Any applicable situation: Re-align annotations, which are always on the left */
-.rgh-no-unnecessary-split-diff-view :is(.inline-comments, .js-inline-annotations) td:nth-child(2) {
+/* Any applicable situation: Re-align annotations */
+.rgh-no-unnecessary-split-diff-view :is(.inline-comments, .js-inline-annotations) .empty-cell:not(.blob-num) {
  display: var(--rgh-only-additions, var(--rgh-only-deletions, table-cell)) !important;
 }