Help with automerge configuration

[adusak]

I have a question about how to properly configure auto merging. I am using renovate for dependency checking in on-premise BitBucket and it works great.
However I have come across an issue where it doesn't want to automatically merge some PRs.
This is renovate main configuration:

module.exports = {
    platform: 'bitbucket-server',
    endpoint: '[endpoint]',
    username: '[user]',
    password: '[password]',
    gitAuthor: '[user]',
    labels: ['renovate', 'dependencies', 'automated'],
    prHourlyLimit: 20,
    prConcurrentLimit: 5,
    commitMessagePrefix: "[prefix]",
    onboarding: true,
    branchTopic: "{{{depNameSanitized}}}-{{{newMajor}}}{{#if isPatch}}-{{{newMinor}}}{{/if}}-x{{#if isLockfileUpdate}}-lockfile{{/if}}",
    onboardingConfig: {
      extends: ['config:base'],
    },
    repositories: [
       repos...
    ],
  };

This is the repository configuration:

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "extends": [
    "config:base"
  ],
  "ignorePaths": ["some path"],
  "packageRules": [
        {
            "updateTypes": ["patch"],
      	    "automerge": true
    	},
        {
            "packagePatterns": ["^Microsoft.Extensions", "^Microsoft.AspNetCore", "^Microsoft.EntityFrameworkCore"],
            "groupName": ["Microsoft packages"]
        },
        {
            "packagePatterns": ["^SpecFlow"],
            "groupName": ["SpecFlow packages"]
        },
        {
            "packagePatterns": ["^Serilog"],
            "groupName": ["Serilog packages"]
        },
        {
            "packagePatterns": ["^System.IO.Abstractions"],
            "groupName": ["System IO Abstractions packages"]
        }
    ]
}

But for the following PR it says that automerge is disabled by configuration. The repository is a mix of docker, nuget and npm packages (not sure whether that might be relevant).

Can somebody point me to an error in my configuration? I tried a lot of experiments but I am at a loss now.

[rarkins]

Please add "separateMinorPatch": true to your config and try again.

[adusak]

Thank you so much! It worked 🙂