- Version by `html2text --version`
html2text==2020.1.16

- Python version `python --version`
3.8.8 on Ubuntu WSL2

- Test script:

```python

from html2text import HTML2Text

h = HTML2Text()
h.ignore_images = True

with open("index.html", "r") as f:
data = f.read()
md1 = h.handle(data)

h = HTML2Text()
h.ignore_images = True

with open("index.html", "r") as f:
data = f.read()
md2 = h.handle(data)

with open("index.html", "r") as f:
data = f.read()
md3 = h.handle(data)

with open("index.html", "r") as f:
data = f.read()
md4 = h.handle(data)

equal1_2=md1==md2
equal1_3=md1==md3
equal1_4=md1==md4

print(f"{equal1_2=}")
print(f"{equal1_3=}")
print(f"{equal1_4=}")

```

Results:
```
equal1_2=True
equal1_3=False
equal1_4=False
```

(Should be 3 x `True`)
(I suggest adding unit test for this issue, after this is fixed)

index.html file (encoded in UTF-8):

```

(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);
EN – Merit Api

window._wpemojiSettings = {"baseUrl":"https:\/\/s.w.org\/images\/core\/emoji\/12.0.0-1\/72x72\/","ext":".png","svgUrl":"https:\/\/s.w.org\/images\/core\/emoji\/12.0.0-1\/svg\/","svgExt":".svg","source":{"concatemoji":"https:\/\/api.merit.ee\/wp-includes\/js\/wp-emoji-release.min.js?ver=5.3.11"}};
!function(e,a,t){var n,r,o,i=a.createElement("canvas"),p=i.getContext&&i.getContext("2d");function s(e,t){var a=String.fromCharCode;p.clearRect(0,0,i.width,i.height),p.fillText(a.apply(this,e),0,0);e=i.toDataURL();return p.clearRect(0,0,i.width,i.height),p.fillText(a.apply(this,t),0,0),e===i.toDataURL()}function c(e){var t=a.createElement("script");t.src=e,t.defer=t.type="text/javascript",a.getElementsByTagName("head")[0].appendChild(t)}for(o=Array("flag","emoji"),t.supports={everything:!0,everythingExceptFlag:!0},r=0;r<o.length;r++)t.supports[o[r]]=function(e){if(!p||!p.fillText)return!1;switch(p.textBaseline="top",p.font="600 32px Arial",e){case"flag":return s([127987,65039,8205,9895,65039],[127987,65039,8203,9895,65039])?!1:!s([55356,56826,55356,56819],[55356,56826,8203,55356,56819])&&!s([55356,57332,56128,56423,56128,56418,56128,56421,56128,56430,56128,56423,56128,56447],[55356,57332,8203,56128,56423,8203,56128,56418,8203,56128,56421,8203,56128,56430,8203,56128,56423,8203,56128,56447]);case"emoji":return!s([55357,56424,55356,57342,8205,55358,56605,8205,55357,56424,55356,57340],[55357,56424,55356,57342,8203,55358,56605,8203,55357,56424,55356,57340])}return!1}(o[r]),t.supports.everything=t.supports.everything&&t.supports[o[r]],"flag"!==o[r]&&(t.supports.everythingExceptFlag=t.supports.everythingExceptFlag&&t.supports[o[r]]);t.supports.everythingExceptFlag=t.supports.everythingExceptFlag&&!t.supports.flag,t.DOMReady=!1,t.readyCallback=function(){t.DOMReady=!0},t.supports.everything||(n=function(){t.readyCallback()},a.addEventListener?(a.addEventListener("DOMContentLoaded",n,!1),e.addEventListener("load",n,!1)):(e.attachEvent("onload",n),a.attachEvent("onreadystatechange",function(){"complete"===a.readyState&&t.readyCallback()})),(n=t.source||{}).concatemoji?c(n.concatemoji):n.wpemoji&&n.twemoji&&(c(n.twemoji),c(n.wpemoji)))}(window,document,window._wpemojiSettings);


img.wp-smiley,
img.emoji {
display: inline !important;
border: none !important;
box-shadow: none !important;
height: 1em !important;
width: 1em !important;
margin: 0 .07em !important;
vertical-align: -0.1em !important;
background: none !important;
padding: 0 !important;
}

.page-header {
float: left;
width: 33%;
}
.entry-content {
float: right;
width: 100%;
}

.blog:not(.has-sidebar) #primary article, .archive:not(.page-one-column):not(.has-sidebar) #primary article, .search:not(.has-sidebar) #primary article, .error404:not(.has-sidebar) #primary .page-content, .error404.has-sidebar #primary .page-content, body.page-two-column:not(.archive) #primary .entry-content, body.page-two-column #comments {
float: right;
width: 67%;

}

var twentyseventeenScreenReaderText = {"quote":"<svg class=\"icon icon-quote-right\" aria-hidden=\"true\" role=\"img\"> <use href=\"#icon-quote-right\" xlink:href=\"#icon-quote-right\"><\/use> <\/svg>","expand":"Expand child menu","collapse":"Collapse child menu","icon":"<svg class=\"icon icon-angle-down\" aria-hidden=\"true\" role=\"img\"> <use href=\"#icon-angle-down\" xlink:href=\"#icon-angle-down\"><\/use> <span class=\"svg-fallback icon-angle-down\"><\/span><\/svg>"};

.page_item {
list-style-type:none;
}

```