[bug #60494] Percent character in filename gets escaped twice

[Kode Charlie]

Follow-up Comment #3, bug #60494 (project wget):

I have an explanation but as yet, no fix.

In *./src/url.c*, the routine *url_unescape()* is called twice for the same
path component (ie, the basename).  Since *url_unescape_1()* modifies the path
component in-place, the effect of processing:

qtwebengine-everywhere-src-5.15.2-%25231904652.patch.gz

twice is that after the first pass, the substring *%2523* is converted to
*%23*, and then after the second pass to *#*.

Hence, the resulting filename:

qtwebengine-everywhere-src-5.15.2-#1904652.patch.gz


I'm looking into a fix.

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