The repair was probably done by Imperial engineer Abraham "Bunny" Robyn, who had pieced together "Blueberry Hill" from a troubled session at Hollywood Master Recorders on June 27, 1956. The band managed a complete take only on "Honey Chile"; afterward bandleader Dave Bartholomew dejectedly dropped the tape on label boss Lew Chudd's desk. Imperial initially pushed "Honey Chile," but Bartholomew was later shocked to learn that not only was "Blueberry Hill" released, it became Domino's biggest hit. Robyn also mastered Domino's singles slightly sped up, which made Domino sound younger and the music difficult to copy. See Rick Coleman's definitive Domino bio for more.
The back story for Fats Domino's "Blueberry Hill" (Imperial 5407, U. S. 78 rpm issue, 1956-1957):
This issue is the only pressing that was produced with a completely undamaged and correct master tape.
Upon the release of the original Imperial 45 (X5407) as well as the album cut (Imperial LP 9028) an anomaly suddenly crops up, which can be heard at 1:06 into the recording at the lyric "vows we made". It was this version that almost exclusively was heard on radio, jukeboxes and home record players at the time. It is unknown when or how this apparent tape stretch or "wow" occurred during the pressing process, but it represented an unrepairable issue on the master tape.
Shortly thereafter, an unknown audio engineer at Imperial decided to "repair" the master with a transfer edit of the original "vows we made" to "vows you made" which was lifted from a passage heard later in the composition. It is this edited take which has been used on virtually all subsequent vinyl and CD reissues throughout the intervening years.
Notes Source: Courtesy of The Music Professor (Bob Moke)