[Bug 8251] New: sed not replace the words after Implement "+ N" range end

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=8251

           Summary: sed not replace the words after Implement "+ N" range
                    end
           Product: Busybox
           Version: 1.24.x
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Standard Compliance
        AssignedTo: unassigned at busybox.net
        ReportedBy: taapat at gmail.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


I am using the latest busybox from git. After this commit:
http://git.busybox.net/busybox/commit/?id=63f4d32c9859c1ed341debefddad4b9c0ae944cc
I see strange things when use sed to replace words. Sometimes replace works,
but sometimes not.

For example these replace foo in file test.txt as I expect:
sed -i 's/foo/bar/w' test.txt
sed -i 's/foo/bar-1/w' test.txt
sed -i 's/foo/t/w' test.txt
sed -i 's/foo/technic-1/w' test.txt
sed -i 's/foo/technical/w' test.txt

But these do no replace foo:
sed -i 's/foo/t-1/w' test.txt
sed -i 's/foo/t-2/w' test.txt
sed -i 's/foo/technical-1/w' test.txt
sed -i 's/foo/TemplatesInfoBarTechnical-1/w' test.txt

If I revert implement "+ N" range end commit, words replaces in all cases.

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