TortoiseSVN version 1.9.x throws an error "URL doesn't exist" when we try to checkout files with % characters in them:
Example form Subversion Properties:
svn://tsvengineering/test/21. Standard Components/090 Drawings/098 Drawings/098-0007- sht 1-1 Res. Axial, 7.50 ohm 1-8w 1%.pdf
svn://tsvengineering/test/21.%20Standard%20Components/090%20Drawings/098%20Drawings/098-0007-%20sht%201-1%20Res.%20Axial,%207.50%20ohm%201-8w%201%25.pdf
When we try to check out the file it looks like it adds another "25" to the file name
svn://tsvengineering/test/21.%20Standard%20Components/090%20Drawings/098%20Drawings/098-0007-%20sht%201-1%20Res.%20Axial,%207.50%20ohm%201-8w%201%2525.pdf
TortoiseSVN versions 1.7.x and 1.8.x work correctly.
Thank you,
Igor