Not work well with prompt editing about sd-webui-negpip

[hako-mikan]

Tested with the following prompts

rose tree and [cat:(red:-1.5):0.01]
rose tree and [cat:(red:-1.5):0.5]
rose tree and [cat:(red:-1.5):0.99]

Roses are usually red.
rose tree and [cat:(red:-1.5):0.01] is equivalent to rose tree and (red:-1.5), so there are only white roses.
rose tree and [cat:(red:-1.5):0.99] is equivalent to rose tree and cat, so there are red roses and a cat.
rose tree and [cat:(red:-1.5):0.5] is in between both, so you get a pink rose and a cat.