[BUG] French accents and WebDAV not working

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• I have read the FAQ section, searched the open issues, and still think this is a new bug.

Describe the bug you encountered:

I'm using a database located on my Synology using WebDAV. The path contains /Sécurité/ in it. The app won't save it properly when synchronized.
Workaround: use Securite instead.

Here is the traceback

15/02/2026 10:45:00:39 -- System.Exception: Unexpected char 0xe9 at 45 in Destination value: https:///Sécurité/Mots2Passe.kdbx
---> Java.Lang.IllegalArgumentException: Unexpected char 0xe9 at 45 in Destination value: https:///Sécurité/Mots2Passe.kdbx
at Java.Interop.JniEnvironment.InstanceMethods.CallVoidMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* )
at Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod(String , IJavaPeerable , JniArgumentValue* )
at Keepass2android.Javafilestorage.WebDavStorage.UploadFile(String path, Byte[] data, Boolean writeTransactional)
at keepass2android.Io.JavaFileStorage.JavaFileStorageWriteTransaction.CommitWrite()
--- End of managed Java.Lang.IllegalArgumentException stack trace ---
java.lang.IllegalArgumentException: Unexpected char 0xe9 at 45 in Destination value: https:///Sécurité/Mots2Passe.kdbx
at okhttp3.Headers$Companion.checkValue(Headers.kt:450)
at okhttp3.Headers$Companion.access$checkValue(Headers.kt:362)
at okhttp3.Headers$Builder.set(Headers.kt:344)
at okhttp3.Request$Builder.header(Request.kt:199)
at keepass2android.javafilestorage.WebDavStorage.renameOrMoveWebDavResource(WebDavStorage.java:214)
at keepass2android.javafilestorage.WebDavStorage.uploadFile(WebDavStorage.java:268)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:29)
at java.lang.Thread.run(Thread.java:1119)

Describe what you expected to happen:

No response

What version of Keepass2Android are you using?

1.14-r4

Which version of Android are you on?

16

Start in JavaFileStorage.WebDavStorage, especially renameOrMoveWebDavResource at WebDavStorage.java:214 and uploadFile at line 268, using the supplied traceback and a WebDAV path containing Sécurité. Reproduce the synchronization failure and trace how the destination path is passed into the request; done means the database saves and synchronizes successfully with the accented path.