In the case of two non-contiguous regions the same size, transpose-regions has
been calling before-change-functions twice, once for each region. It now
calls it just once, for the minimal region spanning both single regions.
* src/editfns.c (Ftranspose_regions): Combine two calls of modify_text into
one.
{
USE_SAFE_ALLOCA;
- modify_text (start1, end1);
- modify_text (start2, end2);
+ modify_text (start1, end2);
record_change (start1, len1);
record_change (start2, len2);
tmp_interval1 = copy_intervals (cur_intv, start1, len1);