How do I prevent the link from using url of the image in Block Editor?

I figured out that I was passing the wrong information to the attributes. I changed it to this and it started working:

attributes: {
    mediaID: {
        type: 'number',
    },
    mediaURL: {
        type: 'string',
        source: 'attribute',
        selector: 'a',
        attribute: 'href',
    },
},