htaccess searching for files - .htaccess

I am having trouble with .htaccess and I am on ubuntu, the problem is, when I write an uri like this,
127.0.0.1/u
the .htaccess searches for a file and when It finds a file that starts with that letter, the uri changes directly to this,
http://127.0.0.1:8000/u/?tab_id=u
But, it should be like this,
http://127.0.0.1/u
It happens beacuse there are files that start with u like, user-edit.php and user-login.php ....
when I write
http:://127.0.0.1/a
or any uri that does not match any file, it runs perfect, this is my .htaccess code
RewriteEngine On
RewriteRule ^([//a-zçöşığüA-ZÇÖŞİĞÜ0-9_-]+)$ tab.php?tab_id=$1 [QSA,L]
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
<files *.html>
SetOutputFilter DEFLATE
</files>
I searched a lot, but cannot find the solution, thank you for any help


Sounds like a MultiViews problem. Disable this by using
Options -MultiViews

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Edit .htaccess on plugin deactivate

I am trying to add rewrite rules in .htaccess during plugin activation. How can I edit/roll-back rewrite rules in .htaccess on plugin deactivation?
function add_to_htaccess( $rules ) {
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Can deflate/gzip be with "deny from all"?

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# compress text, html, javascript, css, xml:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
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deny from all

deny from all means no one can access the directory directly via a URL. Any content sent to the browser from that directory has to come via a server-side script placed elsewhere, which means that .htaccess is bypassed entirely - so the compression won't take place.
Your server-side script will therefore have to perform the compression on its own using http_deflate before outputting the data from those files.

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