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body-leading-blank complains about missing line

See original GitHub issue

Expected Behavior

body-leading-blank should pass if the body has a leading blank line

Current Behavior

body-leading-blank returns a warning if the body has a leading blank line and is present.

If no body exists no warning is returned

Affected packages

cli
core
prompt
config-angular

Possible Solution

Steps to Reproduce (for bugs)

create a message like below

chore(zf9012): zf9012 模块加入 modules.pro 

import_lib 中包含第三方依赖库和其配置

$ commitlint -e
⧗   input: chore(zf9012): zf9012 模块加入 modules.pro  
⚠   body must have leading blank line [body-leading-blank]

⚠   found 0 problems, 1 warnings
ⓘ   Get help: https://github.com/conventional-changelog/commitlint/#what-is-commitlint

commitlint.config.js

{
    extends: ['@commitlint/config-conventional'],
        rules: {
        'body-leading-blank': [1, 'always'],        // body 和 header 之间总是包含空行
        'footer-leading-blank': [1, 'always'],      // footer 和 body 之间总是包含空行
        'header-max-length': [2, 'always', 72],     // header 的最大长度
        'scope-case': [2, 'always', 'lower-case'],  // scope 总是为小写
        'scope-empty': [2, 'never'],                // scope 不允许为空
        'scope-enum': [ // scope 必须满足以下字段
            2,
            'always',
            [
                'ladybug5',
                'ladybug5p',
                'lbas',
                'lucid',
                'novatel',
                'octans',
                'r2sonic',
                'riegl',
                'seabat7125',
                'zf9012',
                'non-sensor'
            ]
        ],
        'subject-case': [                           // subject 不允许为以下格式
            2,
            'never',
            [
                'sentence-case',    // Sentence case
                'start-case',       // Start Case
                'pascal-case',      // PascalCase
                'upper-case'        // UPPERCASE
            ]
        ],
        'subject-empty': [2, 'never'],              // subject 不允许为空
        'subject-full-stop': [2, 'never', '.'],     // subject 不允许以 . 结尾
        'type-case': [2, 'always', 'lower-case'],   // type 总是为小写
        'type-empty': [2, 'never'],                 // type 不允许为空
        'type-enum': [                              // type 必须满足以下字段
            2,
            'always',
            [
                'build',    // 编译环境发生改变
                'chore',    // 构建构成或辅助工具的变动 (eg: 本文件的改动)
                'ci',       // 持续集成环境改变
                'docs',     // 文档修改
                'feat',     // 新增功能
                'fix',      // 修复 bug
                'perf',     // 性能优化
                'refactor', // 重构，既不是新功能的增加，也不是修复 bug
                'revert',   // 回退
                'style',    // 代码样式的变更
                'test'      // 测试
            ]
        ]
    }
}