fix: show mismatch alert for ReplaceBar when keyword is not found

[add-uos]

问题

Window::handleUpdateSearchKeyword() 中 ReplaceBar 分支的空关键词与非空关键词两个分支都调用 setMismatchAlert(false)，已计算出的高亮结果 findKeyword 被忽略——替换栏关键词未命中时永不显示 mismatch 告警。上方 FindBar 分支正确使用了 setMismatchAlert(!findKeyword)，两分支行为不一致，疑为复制粘贴遗漏。

修复

ReplaceBar else 分支改为与 FindBar 一致的 setMismatchAlert(!findKeyword)。

背景

该问题由 AI 辅助单测（PMS 缺陷热点补强，编写 BUG65228 回归用例时审查发现）。

Summary by Sourcery

Bug Fixes:

• Show a mismatch alert in ReplaceBar when a non-empty search keyword is not found.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Fixes ReplaceBar’s non-empty keyword path to honor the search result and show a mismatch alert when the keyword is not found, matching FindBar behavior while preserving the existing empty-keyword handling.

Sequence diagram for ReplaceBar mismatch alert handling

sequenceDiagram
    participant ReplaceBar
    participant Window
    participant Search

    ReplaceBar->>Window: handleUpdateSearchKeyword(widget, file, keyword)
    Window->>Search: findKeyword
    alt keyword is empty
        Window->>ReplaceBar: setMismatchAlert(false)
    else keyword is not empty
        alt keyword is found
            Window->>ReplaceBar: setMismatchAlert(false)
        else keyword is not found
            Window->>ReplaceBar: setMismatchAlert(true)
        end
    end

Loading

File-Level Changes

Change	Details	Files
Make ReplaceBar display a mismatch alert when a non-empty replacement keyword does not match.	Use the existing findKeyword result to call setMismatchAlert(!findKeyword). Update debug logging to report the computed alert state.	src/widgets/window.cpp

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: add-uos, lzwind

The full list of commands accepted by this bot can be found here.

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• debian/deepin/OWNERS

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[add-uos]

/retest

[add-uos]

/forcemerge

[deepin-bot]

This pr force merged! (status: unknown)