[Bug] Replace Image behavior is not clear

[steverogers180]

Steps to reproduce this behavior:

1. Select an image for a new post
2. Click on Replace Image
3. Close the image selector window instead of selecting a new image.

[steverogers180]

Wrapping file reader and upload logic inside an if block works fine.

handleImage(e): void {
    const image = e.target.files[0]
    if (image) {
        const reader = new FileReader()
        reader.readAsDataURL(image)
        reader.onload = (i) => {
	    if (i.target !== null) {
                this.uploadImage(i.target.result)
            }
        }
    }
}

[jackdishman]

Resolved in 579faf8