$ git clone -n https://src.fedoraproject.org/rpms/kdevelop.git /var/lib/mock/f42-build-871954-177838/root/chroot_tmpdir/scmroot/kdevelop
Cloning into '/var/lib/mock/f42-build-871954-177838/root/chroot_tmpdir/scmroot/kdevelop'...
$ git fetch origin 39a95f21c84213ab24d94b97f28b87f57f3b2390:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdevelop
 * [new ref]         39a95f21c84213ab24d94b97f28b87f57f3b2390 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39a95f2 Add patch to find clang builtins in F42+